HIGH

GHSA-5xf7-4p34-54qr

pypdf: Possible infinite loop for not terminated inline images

Quick fix

GHSA-5xf7-4p34-54qr — pypdf: upgrade to the fixed version with the command below.

pip install --upgrade 'pypdf>=6.14.1'

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](https://github.com/py-pdf/pypdf/releases/tag/6.14.1).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#3891](https://github.com/py-pdf/pypdf/pull/3891).

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / pypdf

Introduced in: 0 Fixed in: 6.14.1

Fix pip install --upgrade 'pypdf>=6.14.1'

References

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