CVE-2026-59198

HighCVSS 7.5/10Last modified Oct 24, 2026

Description

Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
python-pillow	Pillow	>= 5.2.0, < 12.3.0

References

https://github.com/python-pillow/Pillow/commit/eada3cbd7fb9963ee90673fb7b5270124a0d5f4bPatch
https://github.com/python-pillow/Pillow/pull/9709Issue Tracking, Patch
https://github.com/python-pillow/Pillow/releases/tag/12.3.0Release Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gqExploit, Vendor Advisory
https://github.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gqExploit, Vendor Advisory

Timeline

Published: Jul 14, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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