| Name | CVE-2026-103000 |
| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application retrieves document page labels, consuming excessive memory and potentially making the application unavailable. This issue is fixed in version 6.19.0. |
| 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) |
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 | fixed |
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 | bookworm | (not affected) | |||
| pypdf2 | source | (unstable) | (unfixed) |
[trixie] - pypdf <no-dsa> (Minor issue)
[bookworm] - pypdf <postponed> (Minor issue)
[bookworm] - pypdf2 <not-affected> (Page label support introduced in pypdf 3.2.0)
https://github.com/py-pdf/pypdf/security/advisories/GHSA-w23x-9jrw-r45c
https://github.com/py-pdf/pypdf/pull/4096
Fixed by: https://github.com/py-pdf/pypdf/commit/0d8b5a8832cde1ba308b5c27567b879b7b7eed4a (6.19.0)