CVE-2026-54058

Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/python-pillow/Pillow/commit/6a8de891fb00968e5ea79bfa84368ed90b3cfc1d	Patch
https://github.com/python-pillow/Pillow/pull/9719	Issue Tracking Patch
https://github.com/python-pillow/Pillow/releases/tag/12.3.0	Product Release Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93	Exploit Mitigation Vendor Advisory
https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-14 17:17

Updated : 2026-08-06 15:46

NVD link : CVE-2026-54058

Mitre link : CVE-2026-54058

CVE.ORG link : CVE-2026-54058

JSON object : View

Products Affected

python

pillow

CWE

CWE-125

Out-of-bounds Read

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