GHSA-x284-j5p8-9c5p
pypdf: Manipulated FlateDecode image dimensions can exhaust RAM
At a glance
- Published
- Updated
- CVE
- CVE-2026-41314
- Aliases
- PYSEC-2026-3026
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS_V4
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
### Impact An attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using `/FlateDecode` with large size values. ### Patches This has been fixed in [pypdf==6.10.2](https://github.com/py-pdf/pypdf/releases/tag/6.10.2). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3734](https://github.com/py-pdf/pypdf/pull/3734).
Affected packages
| Package | Versions |
|---|---|
| PyPI · pypdf | introduced 0, fixed 6.10.2 |
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-x284-j5p8-9c5p WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-41314 ADVISORY
- https://github.com/py-pdf/pypdf/pull/3734 WEB
- https://github.com/py-pdf/pypdf/commit/ac734dab4eef92bcce50d503949b4d9887d89f11 WEB
- https://github.com/py-pdf/pypdf PACKAGE
- https://github.com/py-pdf/pypdf/releases/tag/6.10.2 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |