| Name | CVE-2026-102994 |
| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pypdf (PTS) | bookworm | 3.4.1-1+deb12u1 | vulnerable |
| trixie | 5.4.0-1 | vulnerable |
| forky | 6.19.0-1 | fixed |
| sid | 6.21.1-1 | fixed |
| pypdf2 (PTS) | bookworm | 2.12.1-3+deb12u1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| pypdf | source | (unstable) | 6.19.0-1 | | | |
| pypdf2 | source | (unstable) | (unfixed) | | | |
Notes
[trixie] - pypdf <no-dsa> (Minor issue)
[bookworm] - pypdf <postponed> (Minor issue)
[bookworm] - pypdf2 <postponed> (Minor issue, DoS)
https://github.com/py-pdf/pypdf/security/advisories/GHSA-5jq2-8x83-x246
https://github.com/py-pdf/pypdf/pull/4055
Fixed by: https://github.com/py-pdf/pypdf/commit/82501d2993c6387833c4949d205caeb188f8bb9e (6.18.0)