CVE-2026-107678
Medium · 4.7CVSS
4.7
EPSS
0.1%
Published
Oct 8, 2026
CISA due date
—
The record
FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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