CVE-2026-59198

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.

• CWE-125

• 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

Published

Jul 14, 2026

Last Modified

Jul 14, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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