HIGH 8.7 NVD
CVE-2026-102993
pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_pa
pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document page labels, consuming large amounts of memory and potentially making the application unavailable. This issue is fixed in version 6.17.0.
References
- https://github.com/py-pdf/pypdf/commit/89db7c4fe9315ecc964bfdf05a4e8c4b94175163
- https://github.com/py-pdf/pypdf/pull/4047
- https://github.com/py-pdf/pypdf/releases/tag/6.17.0
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-qv6h-rv94-w285
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-30 via NVD.
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