{ "schemaVersion": "1.0", "publisher": "脆弱性ナビ", "origin": "https://zeijaku.ittrip.xyz", "terms": [ { "name": "CVE Program", "url": "https://www.cve.org/legal/termsofuse", "notice": "CVE content is used subject to the CVE Program Terms of Use. CVE is a trademark of The MITRE Corporation.", "licenseText": "CVE content: Copyright The MITRE Corporation. CVE is a trademark of The MITRE Corporation.\nCVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.\nDisclaimers: ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE." }, { "name": "NIST NVD", "url": "https://nvd.nist.gov/general/faq", "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD." }, { "name": "JVN", "url": "https://jvn.jp/contact/index.html", "notice": "出典：JVN（JPCERT/CC・IPA）。原文は各レコードの参照先を確認してください。" }, { "name": "CISA KEV", "url": "https://github.com/cisagov/kev-data", "notice": "Known Exploited Vulnerabilities catalog, CISA. CC0." } ], "record": { "id": "CVE-2026-110447", "aliases": [], "title": "Collabora Online - Built-in CODE Server：コード実行", "summary": "Collabora Online の Built-in CODE Server（Nextcloud アプリ）で、バージョン 26.4.303 未満（richdocumentscode）において、CODE サーバーが起動していない状態（例：最近再起動した直後）で proxy.php に OS コマンドインジェクションが存在し、リモートからコードを実行できる脆弱性が確認され、2026 年 9 月・10 月に実際に悪用された。", "risk": "攻撃者がこの脆弱性を利用すると、サーバー上で任意のコードを実行させられる可能性がある。", "product": "Collabora Online - Built-in CODE Server", "category": "other", "component": "package", "severity": "critical", "cvss": 9.2, "cvssVersion": "4.0", "cvssSource": "mitre", "cvssVector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "affected": [ { "product": "Collabora Online - Built-in CODE Server", "range": "< 26.4.303" }, { "product": "Collabora Online - Built-in CODE Server", "range": "原典の既定状態: 影響あり。個別指定外の版は例外・条件を原文で確認してください。" } ], "fixed": [], "steps": [ "利用中の製品名・版と上の対象条件を管理担当者に伝え、この脆弱性に対応した修正の有無、適用する版・手順・実施日を確認してください。" ], "references": [ { "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "label": "CVE：mitre" }, { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "label": "CISA KEV（悪用確認）" }, { "url": "https://www.cve.org/CVERecord?id=CVE-2026-110447", "label": "CVE公式レコード" }, { "url": "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "label": "CVE掲載の参考情報" }, { "url": "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "label": "CISAが示す関連情報" }, { "url": "https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh", "label": "CISAが示す関連情報" }, { "url": "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk", "label": "CISAが示す関連情報" }, { "url": "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk", "label": "CISAが示す関連情報" }, { "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110447", "label": "CISAが示す関連情報" }, { "url": "https://www.first.org/cvss/v4.0/specification-document", "label": "FIRST公式：CVSS 4.0の条件の定義" }, { "url": "https://www.cisa.gov/sites/default/files/2024-09/Secure-Our-World-Software-Updates-Tip-Sheet.pdf", "label": "CISA：ソフトウェア更新の基本" } ], "publishedAt": "2026-10-14T02:27:42.315Z", "modifiedAt": "2026-10-23T20:09:43.809Z", "fetchedAt": "2026-10-23T22:20:54.334Z", "exploitStatus": "confirmed", "sources": [ "CVE", "CISA KEV" ], "originalText": "Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.", "sourceTitle": "", "summaryMethod": "公式の公開情報を根拠に自動作成した日本語解説です。引用との整合性を自動検査しています。人による個別確認や利用環境の診断ではありません。", "state": "published", "affectedDetails": [ { "collectionURL": "https://apps.nextcloud.com", "defaultStatus": "affected", "packageName": "richdocumentscode", "product": "Collabora Online - Built-in CODE Server", "repo": "https://github.com/CollaboraOnline/richdocumentscode", "vendor": "Collabora", "versions": [ { "lessThan": "26.4.303", "status": "affected", "version": "0", "versionType": "semver" } ] } ], "officialEvidence": { "schemaVersion": "1.0", "id": "CVE-2026-110447", "sourceType": "CVE", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "fetchedAt": "2026-10-23T22:20:54.334Z", "publishedAt": "2026-10-14T02:27:42.315Z", "modifiedAt": "2026-10-23T20:09:43.809Z", "state": "published", "provider": "mitre", "title": "", "descriptions": [ { "lang": "en", "value": "Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.", "sourcePath": "/containers/cna/descriptions/0/value" }, { "lang": "en", "value": "Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't running.", "sourcePath": "retained:/originalText", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "representation": "retained_feed_field" } ], "affected": [ { "vendor": "Collabora", "product": "Collabora Online - Built-in CODE Server", "sourcePath": "/containers/cna/affected/0", "packageName": "richdocumentscode", "collectionURL": "https://apps.nextcloud.com", "repo": "https://github.com/CollaboraOnline/richdocumentscode", "defaultStatus": "affected", "platforms": [], "modules": [], "programFiles": [], "cpes": [], "programRoutines": [], "versions": [ { "sourcePath": "/containers/cna/affected/0/versions/0", "version": "0", "lessThan": "26.4.303", "versionType": "semver", "status": "affected" } ] } ], "solutions": [], "workarounds": [], "exploits": [], "rejectedReasons": [], "problemTypes": [ { "cweId": "CWE-78", "lang": "en", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "sourcePath": "/containers/cna/problemTypes/0/descriptions/0" } ], "metrics": [ { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "baseScore": 9.2, "baseSeverity": "CRITICAL", "provider": "mitre", "sourcePath": "/containers/cna/metrics/0/cvssV4_0" } ], "references": [ { "url": "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "label": "mitre", "tags": [ "issue-tracking" ], "provider": "mitre", "sourcePath": "/containers/cna/references/0" }, { "url": "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "label": "mitre", "tags": [ "vendor-advisory" ], "provider": "mitre", "sourcePath": "/containers/cna/references/1" }, { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-110447", "label": "CISA-ADP", "tags": [ "government-resource" ], "provider": "CISA-ADP", "sourcePath": "/containers/adp/0/references/0" } ], "snippets": [ { "evidenceId": "official:/containers/cna/affected/0", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourcePath": "/containers/cna/affected/0", "text": "{\"collectionURL\":\"https://apps.nextcloud.com\",\"defaultStatus\":\"affected\",\"packageName\":\"richdocumentscode\",\"product\":\"Collabora Online - Built-in CODE Server\",\"repo\":\"https://github.com/CollaboraOnline/richdocumentscode\",\"vendor\":\"Collabora\",\"versions\":[{\"lessThan\":\"26.4.303\",\"status\":\"affected\",\"version\":\"0\",\"versionType\":\"semver\"}]}", "truncated": false, "representation": "source_json" }, { "evidenceId": "official:/containers/cna/descriptions/0/value", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourcePath": "/containers/cna/descriptions/0/value", "text": "Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.", "truncated": false, "representation": "source_excerpt" }, { "evidenceId": "official:/containers/cna/problemTypes/0/descriptions/0", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourcePath": "/containers/cna/problemTypes/0/descriptions/0", "text": "{\"cweId\":\"CWE-78\",\"description\":\"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')\",\"lang\":\"en\",\"type\":\"CWE\"}", "truncated": false, "representation": "source_json" }, { "evidenceId": "official:/containers/cna/metrics/0/cvssV4_0", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourcePath": "/containers/cna/metrics/0/cvssV4_0", "text": "{\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"attackVector\":\"NETWORK\",\"baseScore\":9.2,\"baseSeverity\":\"CRITICAL\",\"privilegesRequired\":\"NONE\",\"providerUrgency\":\"NOT_DEFINED\",\"subAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"userInteraction\":\"NONE\",\"valueDensity\":\"NOT_DEFINED\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\",\"version\":\"4.0\",\"vulnAvailabilityImpact\":\"HIGH\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\"}", "truncated": false, "representation": "source_json" }, { "evidenceId": "cisa:CVE-2026-110447:retained:/originalText", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "sourcePath": "retained:/originalText", "text": "Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't running.", "upstreamField": "shortDescription", "truncated": false, "representation": "retained_feed_field", "sourceType": "CISA KEV" }, { "evidenceId": "cisa:CVE-2026-110447:retained:/sourceAction", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "sourcePath": "retained:/sourceAction", "text": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "upstreamField": "requiredAction", "truncated": false, "representation": "retained_feed_field", "sourceType": "CISA KEV" } ], "limits": { "completeness": "official_record", "truncatedFields": [], "note": "CVE公式レコードに記載された情報です。参照先の個別ページ本文は含みません。unaffected（影響なし）の版を修正版とは推測しません。 CISAの保存済みフィードの説明・対応を、CVE本文と出典を分けて保持しています。この処理でCISAを再取得したとは扱いません。" }, "supplementarySources": [ { "sourceType": "CISA KEV retained snapshot", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "modifiedAt": "2026-10-23T00:00:00.000Z", "fetchedAt": "2026-10-23T22:17:49.999Z", "retained": true } ] }, "sourceSnapshots": [ { "source": "CVE", "modifiedAt": "2026-10-23T20:09:43.809Z", "fetchedAt": "2026-10-23T22:20:54.334Z", "state": "published" }, { "source": "CISA KEV", "modifiedAt": "2026-10-23T00:00:00.000Z", "fetchedAt": "2026-10-23T22:17:49.999Z", "state": "published" } ], "sourceAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "sourceSummary": "Collabora Online - Built-in CODE Serverにコード実行に関する脆弱性情報があります。影響を受ける条件を確認してください。", "sourceRisk": "攻撃者に対象のシステム上でコードやコマンドを実行される可能性があります。", "guidance": { "schemaVersion": "1.0", "method": "automatic", "reviewedAt": null, "reviewState": "current", "generatedAt": "2026-10-23T22:20:54.334Z", "generatorVersion": "2026-10-23.3", "sourceFingerprint": "d3619b7f3967367019200992eafb61d6ac1dfbf6c66d8a383c55bdda10098da0", "sourceModifiedAt": "2026-10-23T20:09:43.809Z", "model": "@cf/openai/gpt-oss-120b", "verificationMethod": "exact_source_excerpt_and_independent_semantic_check", "summary": "Collabora Online の Built-in CODE Server（Nextcloud アプリ）で、バージョン 26.4.303 未満（richdocumentscode）において、CODE サーバーが起動していない状態（例：最近再起動した直後）で proxy.php に OS コマンドインジェクションが存在し、リモートからコードを実行できる脆弱性が確認され、2026 年 9 月・10 月に実際に悪用された。", "risk": "攻撃者がこの脆弱性を利用すると、サーバー上で任意のコードを実行させられる可能性がある。", "summaryEvidenceIds": [ "E1" ], "riskEvidenceIds": [ "E1", "E2" ], "applicability": [ { "text": "対象は Nextcloud 上で動作する Collabora Online の Built-in CODE Server（製品名: Collabora Online - Built-in CODE Server、パッケージ名: richdocumentscode）で、スタンドアロンの Collabora Online サーバーは含まれない。影響はバージョン 26.4.303 未満で、CODE サーバーが停止している、または再起動直後など CODE サーバーが動作していない状態である場合に限られる。", "kind": "fact", "sourceUrls": [ "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json" ], "evidenceIds": [ "E1", "E3" ] }, { "text": "公式の対象表：Collabora / Collabora Online - Built-in CODE Server。影響ありとして記載：26.4.303未満の版。個別に例外が記されていない版も、原資料では影響ありとされています。", "kind": "fact", "sourceUrls": [ "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json" ], "evidenceIds": [ "E3" ] }, { "text": "CISAの一覧では、この脆弱性が実際の攻撃に使われたことが確認されています。対象かどうかの確認と修正を優先してください。この情報だけで、あなたの環境が被害を受けたとは判断できません。", "kind": "fact", "sourceUrls": [ "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447" ], "evidenceIds": [ "E4" ] } ], "versionChecks": [ { "text": "管理担当者に、利用中の製品名・開発元・版やビルド番号を確認してもらいます。上に記載した対象の機能・設定・利用者の権限も、実際の環境と照合してください。", "kind": "procedure", "sourceUrls": [ "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json" ], "evidenceIds": [ "E3" ] }, { "text": "「Collabora Online - Built-in CODE Server」の管理画面・設定・製品情報で、正式な製品名、開発元、版・ビルド番号を控えます。見つからない場合は、購入先・提供元・管理担当者へ下の問い合わせ文を送ってください。製品名が似ているだけでは対象とは判断できません。", "kind": "procedure", "sourceUrls": [ "https://www.cisa.gov/sites/default/files/2024-09/Secure-Our-World-Software-Updates-Tip-Sheet.pdf", "https://www.cve.org/CVERecord?id=CVE-2026-110447", "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh", "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk", "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk", "https://nvd.nist.gov/vuln/detail/CVE-2026-110447" ] } ], "actions": [ { "text": "利用中の製品名・版と上の対象条件を管理担当者に伝え、この脆弱性に対応した修正の有無、適用する版・手順・実施日を確認してください。", "kind": "procedure", "sourceUrls": [ "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json" ], "evidenceIds": [ "E3" ] } ], "temporaryMitigations": [ { "text": "修正が間に合わない場合は、提供元に「このCVEに有効な回避策」「利用を続けてよい条件」「修正予定日」を確認します。機能停止や接続制限が必要かは、その製品・構成に合わせて管理担当者と決めてください。", "kind": "procedure", "sourceUrls": [ "https://www.cve.org/CVERecord?id=CVE-2026-110447", "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh", "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk", "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk", "https://nvd.nist.gov/vuln/detail/CVE-2026-110447" ] } ], "verification": [ { "text": "対応を依頼した場合は、実施した版・設定と完了日時、この脆弱性への修正が含まれると判断した根拠を担当者から受け取ってください。更新後は普段使う主要な操作も確認します。", "kind": "procedure", "sourceUrls": [ "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json" ], "evidenceIds": [ "E3" ] }, { "text": "更新後に製品情報を開き直して版・ビルド番号を記録し、このCVEへの修正が含まれることを提供元の回答・修正情報と照合します。通常使う主要な操作も確かめてください。", "kind": "procedure", "sourceUrls": [ "https://www.cisa.gov/sites/default/files/2024-09/Secure-Our-World-Software-Updates-Tip-Sheet.pdf", "https://www.cve.org/CVERecord?id=CVE-2026-110447", "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh", "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk", "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk", "https://nvd.nist.gov/vuln/detail/CVE-2026-110447" ] } ], "unknowns": [ "この解説は、利用中の機器・サイトの設定や修正の適用状況を検査した結果ではありません。製品名・版と上に示した条件を、実際の環境と照合してください。", "今回取得した資料から、修正済みと明記された版の番号を取り出せていません。修正が存在しないという意味ではありません。対象の製品・現在の版を添え、提供元に修正版の番号と適用方法を確認してください。" ], "sources": [ { "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "label": "CVE：mitre" }, { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "label": "CISA KEV（悪用確認）" }, { "url": "https://www.cve.org/CVERecord?id=CVE-2026-110447", "label": "CVE公式レコード" }, { "url": "https://github.com/CollaboraOnline/richdocumentscode/issues/354", "label": "CVE掲載の参考情報" }, { "url": "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516", "label": "CISAが示す関連情報" }, { "url": "https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh", "label": "CISAが示す関連情報" }, { "url": "https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk", "label": "CISAが示す関連情報" }, { "url": "https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk", "label": "CISAが示す関連情報" }, { "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110447", "label": "CISAが示す関連情報" }, { "url": "https://www.first.org/cvss/v4.0/specification-document", "label": "FIRST公式：CVSS 4.0の条件の定義" }, { "url": "https://www.cisa.gov/sites/default/files/2024-09/Secure-Our-World-Software-Updates-Tip-Sheet.pdf", "label": "CISA：ソフトウェア更新の基本" } ], "evidence": [ { "id": "E1", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourceField": "/containers/cna/descriptions/0/value", "excerpt": "Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.", "language": "en", "representation": "source_excerpt" }, { "id": "E2", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "sourceField": "retained:/originalText", "excerpt": "Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't running.", "language": "en", "representation": "retained_feed_field" }, { "id": "E3", "sourceUrl": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110447.json", "sourceField": "/containers/cna/affected/0", "excerpt": "{\"collectionURL\":\"https://apps.nextcloud.com\",\"defaultStatus\":\"affected\",\"packageName\":\"richdocumentscode\",\"product\":\"Collabora Online - Built-in CODE Server\",\"repo\":\"https://github.com/CollaboraOnline/richdocumentscode\",\"vendor\":\"Collabora\",\"versions\":[{\"lessThan\":\"26.4.303\",\"status\":\"affected\",\"version\":\"0\",\"versionType\":\"semver\"}]}", "language": null, "representation": "source_json" }, { "id": "E4", "sourceUrl": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-110447", "sourceField": "/exploitStatus", "excerpt": "{\"id\":\"CVE-2026-110447\",\"source\":\"CISA KEV\",\"knownExploited\":true,\"meaning\":\"CISA lists this vulnerability as known to have been exploited in the wild. This does not establish compromise of the reader's environment or prove ongoing attacks today.\"}", "language": "en", "representation": "normalized_feed_field" } ], "supportRequest": "件名：CVE-2026-110447（Collabora Online - Built-in CODE Server）の影響と対応確認\n\n利用中の製品・サービス：[記入してください]\n現在のバージョン・設定：[不明なら「不明」と記入]\n\n次の公式情報にある条件が、私たちの環境に当てはまるか確認をお願いします。\n・対象は Nextcloud 上で動作する Collabora Online の Built-in CODE Server（製品名: Collabora Online - Built-in CODE Server、パッケージ名: richdocumentscode）で、スタンドアロンの Collabora Online サーバーは含まれない。影響はバージョン 26.4.303 未満で、CODE サーバーが停止している、または再起動直後など CODE サーバーが動作していない状態である場合に限られる。\n・公式の対象表：Collabora / Collabora Online - Built-in CODE Server。影響ありとして記載：26.4.303未満の版。個別に例外が記されていない版も、原資料では影響ありとされています。\n・CISAの一覧では、この脆弱性が実際の攻撃に使われたことが確認されています。対象かどうかの確認と修正を優先してください。この情報だけで、あなたの環境が被害を受けたとは判断できません。\n\n対象の場合、適用する修正・回避策、実施予定、停止や再起動の必要性、完了後の確認結果を教えてください。\n確認している情報：https://zeijaku.ittrip.xyz/vulnerabilities/CVE-2026-110447", "publicationCheckVersion": "2026-10-23.1", "sourceNotices": [], "automation": { "status": "ready", "lastAttempt": "2026-10-23T22:20:54.334Z", "lastSuccess": "2026-10-23T22:20:54.334Z", "sourceCheckedAt": "2026-10-23T22:20:54.334Z", "errorCode": null }, "glossary": [ { "term": "任意のコード実行", "meaning": "攻撃者が用意した処理や命令を、対象のサーバー・機器に実行させられることです。実行できる権限や必要な条件は、個別の説明を確認します。", "sourceUrl": "https://cwe.mitre.org/data/definitions/94.html", "kind": "general_definition" } ] } } }