CVE-2026-112398

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two bytes per pixel, while an unrecognized JPEG mode can be decoded as JCS_UNKNOWN with four components, causing ImagingJpegDecode to write four-component scanlines into the two-byte tile buffer. An attacker can supply a crafted OLE2 FlashPix file to an application with the optional olefile dependency installed that opens or thumbnails untrusted input. This can corrupt heap memory and may allow arbitrary code execution. This issue is fixed in version 13.0.0.

• CWE-122
• CWE-787

• https://github.com/python-pillow/Pillow/commit/242a059aedc1935097d9aa1dc3f099750467ba75
• https://github.com/python-pillow/Pillow/releases/tag/13.0.0
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x8w-8jj5-q52h

Published

Oct 19, 2026

Last Modified

Oct 20, 2026

Status

Awaiting Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-112392Pillow is a Python imaging library. Prior to 13.0.0, Pillow'…8.2
• CVE-2026-112393Pillow is a Python imaging library. From 2.0.0 until 13.0.0,…9.2
• CVE-2026-112394Pillow is a Python imaging library. Prior to 13.0.0, Pillow'…6.3
• CVE-2026-112395Pillow is a Python imaging library. From 8.2.0 until 13.0.0,…6.5
• CVE-2026-112396Pillow is a Python imaging library. From 11.3.0 until 13.0.0…5.9
• CVE-2026-112397Pillow is a Python imaging library. Prior to 13.0.0, Pillow'…8.7
• CVE-2026-112399Pillow is a Python imaging library. From 8.1.0 until 13.0.0,…8.7
• CVE-2026-1124A security flaw has been discovered in Yonyou KSOA 9.0. Affe…9.8
• CVE-2026-11240Insufficient validation of untrusted input in Loader in Goog…3.1
• CVE-2026-112400Pillow is a Python imaging library. From 9.2.0 until 13.0.0,…8.7
• CVE-2026-112401Pillow is a Python imaging library. From 5.4.0 until 13.0.0,…6.9
• CVE-2026-112402Pillow is a Python imaging library. Prior to 13.0.0, Pillow …8.7