Chainguard: multiple eco-python-ffmpeg-8-minimal packages, multiple ffmpeg-8.1 packages: security update to 8.1.3-r0

high Tenable Cloud Security Plugin ID 476528

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the
native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted
PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple IFD entries
reference the same large value payload, causing canonical serialization to expand the output far beyond
the undersized allocation estimated by add_exif_profile_size(), resulting in png_write_chunk() writing
tens of thousands of bytes past the buffer boundary, leading to deterministic heap corruption, process
crash, and potentially arbitrary code execution. (CVE-2026-66040)

Solution

Update the eco-python-ffmpeg-8-minimal library and its related packages to version 8.1.3-r0 or later.

Plugin Details

Severity: High

ID: 476528

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.51

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-66040

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-66040