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SCA: security update for Pillow (GHSA-rfgq-q3w2-pmv2)

medium Tenable Self-Hosted Container Security Plugin ID 476588

Description

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

 - Pillow is a Python imaging library. From 9.1.0 until 13.0.0, Pillow can disclose uninitialized stack
 memory when Image.quantize() uses an empty palette. ImagingPaletteCacheUpdate() leaves a local cache array
 uninitialized when the palette has zero entries, and the conversion path emits those bytes as output pixel
 indices. An attacker who controls the palette image can obtain stack contents from a returned PNG or GIF.
 This can disclose addresses and stack-canary data without an out-of-bounds access, memory corruption, or
 process crash. This issue is fixed in version 13.0.0. (CVE-2026-112898)

Solution

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

See Also

https://github.com/advisories/GHSA-rfgq-q3w2-pmv2

Plugin Details

Severity: Medium

ID: 476588

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/22/2026

Updated: 10/22/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.54

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-112898

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 10/19/2026

Reference Information

CVE: CVE-2026-112898

cwe: CWE-457