CVE-2026-84310

NameCVE-2026-84310
Descriptionpypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1146476

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pypdf (PTS)bookworm3.4.1-1+deb12u1vulnerable
trixie5.4.0-1vulnerable
forky, sid6.9.2-2vulnerable
pypdf2 (PTS)bookworm2.12.1-3+deb12u1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pypdfsource(unstable)(unfixed)1146476
pypdf2source(unstable)(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2527049
check upstream references

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