Detections
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SCA: security update for Pillow (GHSA-mrfp-p49p-3hf2)

high Tenable Cloud Security Plugin ID 476856

Description

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

 - Pillow is a Python imaging library. From 5.1.0 until 13.0.0, PdfParser.linearize_page_tree() in
 src/PIL/PdfParser.py treats a PDF /Pages graph as a tree without tracking duplicate indirect references.
 When Image.save(..., format="PDF", append=True) processes an attacker-controlled existing PDF whose /Kids
 arrays repeatedly reference the same child /Pages node, Pillow expands the shared subtree as distinct
 pages. A compact malformed PDF can therefore create exponentially many page references and consume
 disproportionate CPU before the append completes. This issue is fixed in version 13.0.0. (CVE-2026-96640)

Solution

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

See Also

https://github.com/advisories/GHSA-mrfp-p49p-3hf2

Plugin Details

Severity: High

ID: 476856

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/22/2026

Updated: 10/22/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2026-96640

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 10/21/2026

Reference Information

CVE: CVE-2026-96640