SCA: security update for Pillow (GHSA-5xm2-6676-qcp9)

high Tenable Self-Hosted Container Security Plugin ID 476594

Description

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

- Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow can allocate an APNG disposal
background at the full canvas size before applying the decompression-bomb check. A crafted APNG with a
small first frame, a very large declared canvas, and background disposal or first-frame OP_PREVIOUS
reaches PngImageFile._seek while Image.open() positions frame zero. The full-canvas allocation occurs
inside Image.open() without requiring pixel loading or frame iteration. This can exhaust memory and deny
service. This issue is fixed in version 13.0.0. (CVE-2026-112399)

Solution

Update the Pillow library and its related packages to version 13.0.0 or later.

See Also

https://github.com/advisories/GHSA-5xm2-6676-qcp9

Plugin Details

Severity: High

ID: 476594

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 10/22/2026

Updated: 10/28/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-112399

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 10/19/2026

Reference Information

CVE: CVE-2026-112399

cwe: CWE-789