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CVE-2026-57204

6.9 medium SSVC exploitation: none Analyzed
NVD · CVE.org

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.9 · pypdf_projectNVD modified 2026-10-25 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*

References 2