Stack-based Buffer Overflow Affecting eco-python-ffmpeg-8-minimal package, versions <8.1.3-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.85% (57th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ECOPYTHONFFMPEG8MINIMAL-20028241
  • published21 Sept 2026
  • disclosed22 Jul 2026

Introduced: 22 Jul 2026

CVE-2026-64831  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Chainguard eco-python-ffmpeg-8-minimal to version 8.1.3-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eco-python-ffmpeg-8-minimal package and not the eco-python-ffmpeg-8-minimal package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.

CVSS Base Scores

version 3.1