CVE-2026-59936

Summary

pypdf: Possible infinite loop for not terminated inline images

Severity

high

EPSS

0.6% (p49)

CWE

CWE-400, CWE-835

Also known as

GHSA-5xf7-4p34-54qr

Published

2026-07-23

Updated

2026-07-23

Advisory details

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example.

Patches

This has been fixed in pypdf==6.14.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3891.

References

• https://github.com/advisories/GHSA-5xf7-4p34-54qr
• https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr
• https://nvd.nist.gov/vuln/detail/CVE-2026-59936
• https://github.com/py-pdf/pypdf/pull/3891
• https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b
• https://github.com/py-pdf/pypdf/releases/tag/6.14.1

Related advisories

• CVE-2026-115572 — high · PyPI/pypdf
• CVE-2026-115585 — high · PyPI/pypdf
• CVE-2026-102999 — high · PyPI/pypdf
• CVE-2026-102998 — high · PyPI/pypdf
• CVE-2026-103000 — high · PyPI/pypdf
• CVE-2026-102997 — high · PyPI/pypdf
• CVE-2026-102996 — high · PyPI/pypdf
• CVE-2026-102995 — high · PyPI/pypdf

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