CVE-2026-28804
pypdf: Inefficient decoding of ASCIIHexDecode streams
Summary
pypdf: Inefficient decoding of ASCIIHexDecode streams
Original description
The description as published by the source.
pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5.
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-2026-28804 pypdf
- Ubuntu UBUNTU-CVE-2026-28804 pypdf
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- patch github.com
- web github.com