CVE-2026-125240
FFmpeg through 9.0.2 Resource Leak in libsvtjpegxs JPEG XS Decoder Wrapper
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
FFmpeg through 9.0.2 contains a resource leak vulnerability in svt_jpegxs_dec_decode() in libsvtjpegxsdec.c that leaks decoder instances when ff_set_dimensions() rejects frame dimensions. Attackers can supply a crafted JPEG XS stream, for example in MPEG-TS, with oversized headers to repeatedly leak decoder threads and buffers, exhausting memory.
| CWE | CWE-401 |
| Vendor | ffmpeg |
| Product | ffmpeg |
| Published | Nov 9, 2026 |
| Last Updated | Nov 9, 2026 |
Stay Ahead of the Next One
Get instant alerts for ffmpeg ffmpeg
Be the first to know when new medium vulnerabilities affecting ffmpeg ffmpeg are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
FFmpeg / FFmpeg
8.1 ≤ 9.0.2
References
code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25416 github.com: https://github.com/FFmpeg/FFmpeg/commit/3aa561b0dd2054182fbb9548b4526e8500d52a52 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libsvtjpegxsdec.c#L132 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-resource-leak-in-libsvtjpegxs-jpeg-xs-decoder-wrapper
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer