CVE-2026-125102 PUBLISHED

FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in tak_decode_frame() in libavcodec/takdec.c that fails to verify multichannel decorrelation lists cover every channel. Attackers can supply crafted multichannel TAK files omitting channels from the list, causing undecoded sample buffers to leak heap memory through decoded audio.

• Joshua Rogers (AISLE Research) finder
• Michael Niedermayer remediation developer

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25703
• Patch Commit
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/takdec.c#L836
• https://github.com/FFmpeg/FFmpeg
• VulnCheck Advisory: FFmpeg through 9.0.2 TAK Decoder Uninitialized Memory Disclosure via takdec.c

• Use of Uninitialized Resource CWE