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CVE-2026-63269— LFI and GET SSRF via GStreamer and HLS playlists

Quick assessment

Affected
The Document Foundation LibreOffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreOffice 支持从文档中链接音频和视频文件，在 Linux 系统上通过 GStreamer 进行播放。一个被链接的媒体文件可能是一个 HLS 播放列表，当文档加载时，GStreamer 会读取该播放列表中所列出的本地文件和远程 URL，并将其内容插入到文档中。在修复后的版本中，LibreOffice 不再跟随命名了其他资源的播放列表，并且链接的媒体受到链接更新控制的约束。

CVSS 6.7 · Medium
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I. Basic Information for CVE-2026-63269

Vulnerability Information
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Vulnerability Title
LFI and GET SSRF via GStreamer and HLS playlists
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Document Foundation LibreOffice 26.2 ~ < 26.2.5 -

II. Public POCs for CVE-2026-63269

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III. Intelligence Information for CVE-2026-63269

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Other References for CVE-2026-63269 (1)

Same Patch Batch · The Document Foundation · 2026-10-05 · 6 CVEs total

CVE-2026-63277 8.5 HIGH RCE via calcext:data-mappings, sql provider and jdbc connector
CVE-2026-63266 6.8 MEDIUM Arbitrary file write via calcext:data-mappings, sql provider and Firebird backup functiona
CVE-2026-63270 6.7 MEDIUM Environment/ini-file leaks
CVE-2026-63267 6.7 MEDIUM LFI and GET SSRF via calcext:data-mappings and csv provider
CVE-2026-63268 6.7 MEDIUM LFI via calcext:data-mappings, sql provider and sdbc:flat:file:// db href

IV. Related Vulnerabilities

Same product: LibreOffice
Same vendor: The Document Foundation
Same weakness: CWE-918

V. Comments for CVE-2026-63269

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