Allocation of Resources Without Limits or Throttling Affecting ffmpeg package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CONAN-FFMPEG-18366534
- published28 Jul 2026
- disclosed27 Jul 2026
- creditUnknown
Introduced: 27 Jul 2026
NewCVE-2026-66037 (opens in a new tab)How to fix?
There is no fixed version for ffmpeg.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the mix_presentation_obu() function of libavformat/iamf_parse.c, which calls av_calloc(count_label, sizeof(*language_label)) with the attacker-controlled count_label before validating the available OBU data. An attacker can exhaust process memory or trigger an OOM-kill by supplying a 17-byte IAMF input file that sets a large count_label, driving a multi-gigabyte allocation of roughly 126 million bytes per input byte. Exploitation occurs during format probing of an IAMF input, so it requires FFmpeg to probe or demux the attacker-supplied file.