pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream
Summary
pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream
Original description
The description as published by the source.
pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-33699 pypdf
- Ubuntu UBUNTU-CVE-2026-33699 pypdf2
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com