GHSA-jm82-fx9c-mx94
pypdf: Missing stream length values ignore defined limits
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-57204
- CVSS_V4
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/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 large memory usage, as `MAX_DECLARED_STREAM_LENGTH` is sometimes ignored. This requires parsing a content stream without a `/Length` value. ### Patches This has been fixed in [pypdf==6.13.3](https://github.com/py-pdf/pypdf/releases/tag/6.13.3). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3871](https://github.com/py-pdf/pypdf/pull/3871).
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · pypdf | introduced 0, fixed 6.13.3 |
Références
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jm82-fx9c-mx94 WEB
- https://github.com/py-pdf/pypdf/pull/3871 WEB
- https://github.com/py-pdf/pypdf PACKAGE
- https://github.com/py-pdf/pypdf/releases/tag/6.13.3 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |