PT-2026-58092 · Pypi · Pillow

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-59205

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Pillow versions prior to 12.3.0

Description The ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption. This occurs when the caller provides an output image whose mode is inconsistent with the transform's declared output mode.

Recommendations Update to version 12.3.0.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-59205

GHSA-9HW9-CH79-4VH6

Affected Products

Pillow

References · 7

• 🔥 https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59205.json · Exploit
• https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721 · Patch
• https://github.com/python-pillow/Pillow/pull/9715 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-59205 · Security Note
• https://osv.dev/vulnerability/CVE-2026-59205 · Vendor Advisory
• https://github.com/python-pillow/Pillow/releases/tag/12.3.0 · Note