CVE-2026-59938

EUVD-2026-42343
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with declared image size values that are much too large compared to the actual data, causing large memory usage in pypdf image parsing. This issue is fixed in version 6.14.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
pypdf
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
pypdf2
bookworm
vulnerable
bullseye
vulnerable
Common Weakness Enumeration
References
https://github.com/py-pdf/pypdf/commit/c64583be16b8e8763d8777075f8ecbf382014b7a
https://github.com/py-pdf/pypdf/pull/3888
https://github.com/py-pdf/pypdf/releases/tag/6.14.0
https://github.com/py-pdf/pypdf/security/advisories/GHSA-5qjq-93h5-hrgp