CVE-2026-119206

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can take excessive time to retrieve page labels from a crafted PDF containing a flat page-label number tree with many ranges. The page_labels property resolves each page independently and repeatedly scans the same /Nums array from the beginning, causing work to grow with both the page count and the number of label ranges. This issue is fixed in version 6.21.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/b891fef37000cd86baa6e9848a3387d080b3b03e
https://github.com/py-pdf/pypdf/pull/4251
https://github.com/py-pdf/pypdf/releases/tag/6.21.3
https://github.com/py-pdf/pypdf/security/advisories/GHSA-42gh-23hr-vphw

Configurations

No configuration.

History

29 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-29 21:17

Updated : 2026-10-30 17:18

NVD link : CVE-2026-119206

Mitre link : CVE-2026-119206

CVE.ORG link : CVE-2026-119206

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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