CVE-2026-102993

UNKNOWN 0.0

pypdf: Possible large memory usage when retrieving Roman page labels

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-400 CWE-770
Vendor	py-pdf
Product	pypdf
Published	Sep 30, 2026

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Affected Versions

py-pdf / pypdf

< 6.17.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/py-pdf/pypdf/security/advisories/GHSA-qv6h-rv94-w285 github.com: https://github.com/py-pdf/pypdf/pull/4047 github.com: https://github.com/py-pdf/pypdf/commit/89db7c4fe9315ecc964bfdf05a4e8c4b94175163 github.com: https://github.com/py-pdf/pypdf/releases/tag/6.17.0