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 476517

Description

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

- FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to cause heap
corruption by supplying a crafted ffconcat file processed with the -safe 0 flag. The TY demuxer's
demux_audio() function decrements packet size without bounds checking, producing a negative size value
that is passed to memcpy() in shorten_decode_frame(), where conversion to size_t wraps the value to near
SIZE_MAX and triggers reads beyond the source allocation and writes far beyond the Shorten decoder's
bitstream buffer. (CVE-2026-65704)

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: 476517

Version: Revision 1.2

Type: Local

Published: 10/21/2026

Updated: 10/22/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.22

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-65704

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/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: 7.3

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:P/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: 7/23/2026

Reference Information

CVE: CVE-2026-65704