CVE-2026-59203

Published: Jul 14, 2026Modified: Jul 15, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open() to seek backwards to the same directive and parse it repeatedly in an infinite loop. This issue is fixed in version 12.3.0.

Affected (1)

Products: Python: Pillow

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Python Pillow	From 12.0.0 to 12.3.0

Related CWEs

Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References (5)

https://github.com/python-pillow/Pillow/commit/03992618118b4a76b6163cd72ab5ecd684133b83

Source: security-advisories@github.com

Patch

https://github.com/python-pillow/Pillow/pull/9708

Source: security-advisories@github.com

Issue TrackingPatch

https://github.com/python-pillow/Pillow/releases/tag/12.3.0

Source: security-advisories@github.com

Release Notes

https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

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