PYSEC-2026-1831
pypdf can exhaust RAM via manipulated LZWDecode streams
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2025-62708
- Alias
- GHSA-jfx9-29x2-rv3j
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Description
### Impact An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream of a page using the LZWDecode filter. ### Patches This has been fixed in [pypdf==6.1.3](https://github.com/py-pdf/pypdf/releases/tag/6.1.3). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3502](https://github.com/py-pdf/pypdf/pull/3502).
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · pypdf | introduced 0, fixed 6.1.3 |
Références
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jfx9-29x2-rv3j WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-62708 ADVISORY
- https://github.com/py-pdf/pypdf/pull/3502 WEB
- https://github.com/py-pdf/pypdf/commit/e51d07807ffcdaf18077b9486dadb3dc05b368da WEB
- https://github.com/py-pdf/pypdf PACKAGE
- https://github.com/py-pdf/pypdf/releases/tag/6.1.3 WEB
- https://pypi.org/project/pypdf PACKAGE
- https://github.com/advisories/GHSA-jfx9-29x2-rv3j ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |