HIGH 7.1 NVD
CVE-2026-115572
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect o
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect object, causing relevant file parts such as pages to trigger repeated full-file recovery loads and long runtimes when accessed. This issue is fixed in version 6.21.2.
References
- https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b
- https://github.com/py-pdf/pypdf/pull/4240
- https://github.com/py-pdf/pypdf/releases/tag/6.21.2
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-6c7f-9265-g8fw
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-10-23 via NVD.
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