SB2026110367 - Fedora 45 update for python-pillow

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Main Vulnerability Database SB2026110367

SB2026110367 - Fedora 45 update for python-pillow

Published: November 3, 2026

Security Bulletin ID SB2026110367
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper handling of highly compressed data (CVE-ID: CVE-2026-112892)

CWE-ID: CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service through memory exhaustion.

The vulnerability exists due to uncontrolled expansion of run-length encoded data in Pillow's MSP RLE decoder when loading image pixels. A remote attacker can supply a small crafted MSP image that expands into an unbounded io.BytesIO buffer without a limit tied to the declared image size to exhaust application memory and cause a denial of service.


Remediation

Install update from vendor's website.

References