CVE catalog
CVE-2026-115580
pypdf: CVE-2026-115580
- Severity
- High · CVSS 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF with a standard cross-reference table whose declared entry count exceeds what the file can contain, causing excessive processing and long runtimes when the file is opened. This issue is fixed in version 6.21.2.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pypdf | sid | 6.21.1-1 | vulnerable |
| Debian | pypdf | forky | 6.21.1-1 | vulnerable |
| Debian | pypdf | trixie | 5.4.0-1 | vulnerable |
| Debian | pypdf | bookworm | 3.4.1-1+deb12u1 | vulnerable |
| Debian | pypdf2 | bookworm | 2.12.1-3+deb12u1 | vulnerable |
| Ubuntu | pypdf | 24.04 | 3.4.1-1 | vulnerable |
| Ubuntu | pypdf | 24.04 | 3.17.4-1 | vulnerable |
| Ubuntu | pypdf | 24.04 | 4.0.0-1 | vulnerable |
| Ubuntu | pypdf | 24.04 | 4.0.1-1 | vulnerable |
| Ubuntu | pypdf | 24.04 | 4.0.2-1 | vulnerable |
| Ubuntu | pypdf | 26.10 | 6.9.2-1 | vulnerable |
| Ubuntu | pypdf | 26.10 | 6.9.2-2 | vulnerable |
| Ubuntu | pypdf | 26.04 | 5.4.0-1 | vulnerable |
| Ubuntu | pypdf | 26.04 | 6.9.2-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pypdf | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | pypdf | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | pypdf | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | pypdf | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | pypdf2 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-pypdf]Affected
Source package: [pypdf]
Details (2)
3.4.1-1+deb12u1· all · bookwormAffected
dsa · pypdf · debian · bookworm; dsa · pypdf · debian · 12
3.4.1-1+deb12u1· all · bookwormAffected
dsa · pypdf · debian · bookworm; dsa · pypdf · debian · 12
- [python3-pypdf2]Affected
Source package: [pypdf2]
Details (2)
2.12.1-3+deb12u1· all · bookwormAffected
dsa · pypdf2 · debian · bookworm; dsa · pypdf2 · debian · 12
2.12.1-3+deb12u1· all · bookwormAffected
dsa · pypdf2 · debian · bookworm; dsa · pypdf2 · debian · 12
[Debian 13 (Trixie)]
- [python3-pypdf]Affected
Source package: [pypdf]
Details (2)
5.4.0-1· all · trixieAffected
dsa · pypdf · debian · 13
5.4.0-1· all · trixieAffected
dsa · pypdf · debian · 13
Observed:
References
- [https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2]
- [https://github.com/py-pdf/pypdf/pull/4239]
- [https://github.com/py-pdf/pypdf/releases/tag/6.21.2]
- [https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-115580]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-115580]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-115580]
- [https://security-tracker.debian.org/tracker/CVE-2026-115580]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-115580.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]