CVE-2026-31826
pypdf: manipulated stream length values can exhaust RAM
Summary
pypdf: manipulated stream length values can exhaust RAM
Original description
The description as published by the source.
pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. This vulnerability is fixed in 6.8.0.
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-2026-31826 pypdf
- Ubuntu UBUNTU-CVE-2026-31826 pypdf
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com