PT-2026-40314 · Bitnami · Pillow

Published 2026-05-12 · Updated 2026-05-12

OSV

Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

Related Identifiers

BIT-PILLOW-2026-42310

Affected Products

Pillow

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-42310 · Security Note
• https://osv.dev/vulnerability/BIT-pillow-2026-42310 · Vendor Advisory
• https://github.com/python-pillow/Pillow/releases/tag/12.2.0 · Note
• https://github.com/python-pillow/Pillow/commit/3bf614e4b8615d0ce1d5039efaf6db447fe7c468 · Note
• https://github.com/python-pillow/Pillow/pull/9519 · Note
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-r73j-pqj5-w3x7 · Note