CVE catalog
CVE-2026-59938
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
- Severity
- Medium · CVSS 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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
- 0.52% · Oct 25, 2026
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.
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 | fixed |
| Debian | pypdf | forky | 6.21.1-1 | fixed |
| 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 |
| Cpe | pypdf | Not reported | Not reported | vulnerable |
| Cpe | pypdf2 | Not reported | Not reported | vulnerable |
| Cpe | pypdf | Not reported | 6.14.0 | fixed |
| Pip | pypdf | Not reported | 6.14.0 | fixed |
| PyPI | pypdf | Not reported | 6.14.0 | fixed |
| PyPI | pypdf | Not reported | 6.14.0 | fixed |
| Cpe | pypdf | Not reported | 6.14.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pypdf | source | sid | 6.19.0-1 | not yet assigned | Not reported | [1141771] |
| Debian | pypdf | source | forky | 6.19.0-1 | not yet assigned | Not reported | [1141771] |
| Debian | pypdf | source | trixie | (unfixed) | not yet assigned | Not reported | [1141771] |
| Debian | pypdf | source | bookworm | (unfixed) | not yet assigned | Not reported | [1141771] |
| Debian | pypdf2 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | pypdf | cpe | Not reported | 6.14.0 | Not reported | Not reported | Not reported |
| Pip | pypdf | pip | Not reported | 6.14.0 | Not reported | Not reported | Not reported |
| PyPI | pypdf | PyPI | Not reported | 6.14.0 | Not reported | PYSEC-2026-3611 | Not reported |
| PyPI | pypdf | PyPI | Not reported | 6.14.0 | Not reported | GHSA-5QJQ-93H5-HRGP | Not reported |
| Cpe | pypdf | cpe | Not reported | 6.14.0 | Not reported | NVD-CVE-2026-59938 | Not reported |
Notes
[trixie] pypdf: Minor issue [bookworm] pypdf: Minor issue [bookworm] pypdf2: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-pypdf]Affected
Source package: [pypdf]
Details (2)
3.4.1-1+deb12u1· all · bookwormAffected
nvd · pypdf · debian · bookworm; nvd · pypdf · debian · 12
3.4.1-1+deb12u1· all · bookwormAffected
nvd · pypdf · debian · bookworm; nvd · pypdf · debian · 12
- [python3-pypdf2]Affected
Source package: [pypdf2]
Details (2)
2.12.1-3+deb12u1· all · bookwormAffected
nvd · pypdf2 · debian · bookworm; nvd · pypdf2 · debian · 12
2.12.1-3+deb12u1· all · bookwormAffected
nvd · pypdf2 · debian · bookworm; nvd · pypdf2 · debian · 12
[Debian 13 (Trixie)]
- [python3-pypdf]Affected
Source package: [pypdf]
Details (2)
5.4.0-1· all · trixieAffected
nvd · pypdf · debian · 13
5.4.0-1· all · trixieAffected
nvd · pypdf · debian · 13
Observed:
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]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59938]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-59938]
- [https://osv.dev/vulnerability/GHSA-5qjq-93h5-hrgp]
- [https://security-tracker.debian.org/tracker/CVE-2026-59938]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59938.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]