CVE-2026-119207

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can consume excessive memory when strict mode loads a crafted invalid PDF dictionary. Nested parsing failures add repeated exception text to newly raised errors, allowing a small malformed dictionary to amplify into very large error messages. This issue is fixed in version 6.21.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/64270258c0eced720f7960aecf8cef31afd39f8d
https://github.com/py-pdf/pypdf/pull/4265
https://github.com/py-pdf/pypdf/releases/tag/6.21.3
https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vqv-7265-gm2w

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-2026-119207

Mitre link : CVE-2026-119207

CVE.ORG link : CVE-2026-119207

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-405

Asymmetric Resource Consumption (Amplification)

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