Bug 2569586 (CVE-2026-125243) - CVE-2026-125243 ffmpeg: FFmpeg: Information disclosure via crafted JPEG-LS image
Summary: CVE-2026-125243 ffmpeg: FFmpeg: Information disclosure via crafted JPEG-LS image
Keywords:
Status: NEW
Alias: CVE-2026-125243
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 13:07 UTC by OSIDB Bzimport
Modified: 2026-11-10 13:41 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-11-10 13:07:59 UTC 
FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in ff_jpegls_decode_picture() in libavcodec/jpeglsdec.c, which decodes 16-bit line-interleaved JPEG-LS scans as 8-bit samples. Attackers can supply a crafted single-component JPEG-LS image with the ILV byte set to 1, causing decoded GRAY16 frames to expose leftover heap memory.
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