Vulnerability Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop during inline image end marker detection such as when extracting page text. This issue is fixed in version 6.14.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pypdf Project | Pypdf | < 6.14.1 |
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5bPatch
- https://github.com/py-pdf/pypdf/pull/3891Issue TrackingPatch
- https://github.com/py-pdf/pypdf/releases/tag/6.14.1ProductRelease Notes
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qrPatchVendor Advisory
FAQ
What is CVE-2026-59936?
CVE-2026-59936 is a vulnerability with a CVSS score of 7.5 (HIGH). pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop duri...
How severe is CVE-2026-59936?
CVE-2026-59936 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59936?
Check the references section above for vendor advisories and patch information. Affected products include: Pypdf Project Pypdf.