CVE-2026-63269

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{"bugzilla": {"description": "libreoffice: LibreOffice: Information disclosure via malicious HLS media playlists", "id": "2545889", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545889"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-73", "details": ["LibreOffice can link to audio and video files from a document, and on Linux it plays them with GStreamer. A linked media file could be an HLS playlist that made GStreamer read the local files and remote URLs it listed while the document loaded, and their contents could end up in the document. In fixed versions LibreOffice does not follow playlists that name further resources, and linked media is under link update control.", "A flaw was found in LibreOffice. When processing linked audio or video files on Linux systems, the application uses the GStreamer multimedia framework for playback. By convincing a victim to open a specially crafted document containing a malicious HTTP Live Streaming (HLS) playlist, an attacker can cause GStreamer to read arbitrary local files or remote resources. This flaw can lead to information disclosure, as the contents of sensitive local files may be exposed directly within the document."], "mitigation": {"lang": "en:us", "value": "Configure LibreOffice to restrict automatic link updating by navigating to Tools -> Options -> LibreOffice -> General and setting \"Update links when loading\" to \"On request\" or \"Never\". Alternatively, refrain from opening untrusted documents containing linked multimedia files."}, "name": "CVE-2026-63269", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-05T11:17:23Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63269\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63269\nhttps://www.libreoffice.org/about-us/security/advisories/cve-2026-63269"], "statement": "A security flaw was found in LibreOffice on Linux platforms when rendering linked media files using the GStreamer framework. An attacker can exploit this by enticing a user to open a document with a crafted HTTP Live Streaming (HLS) playlist. When the document loads, GStreamer processes the playlist and reads local files or remote URLs specified within it. This can lead to sensitive local file contents being exposed directly inside the document context under the executing user's privileges.", "threat_severity": "Moderate"}

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