GHSA-wjqc-6w8f-h24c
pypdf: Manipulated XMP metadata streams can exhaust RAM
At a glance
- Published
- Updated
- CVE
- CVE-2026-48735
- Aliases
- PYSEC-2026-3025
- 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. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. ### Patches This has been fixed in [pypdf==6.12.1](https://github.com/py-pdf/pypdf/releases/tag/6.12.1). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3796](https://github.com/py-pdf/pypdf/pull/3796).
Affected packages
| Package | Versions |
|---|---|
| PyPI · pypdf | introduced 0, fixed 6.12.1 |
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-48735 ADVISORY
- https://github.com/py-pdf/pypdf/pull/3796 WEB
- https://github.com/py-pdf/pypdf PACKAGE
- https://github.com/py-pdf/pypdf/releases/tag/6.12.1 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |