GHSA-5849-834g-hvw5High
pypdf has possible infinite loop when hitting EOF in standard xref table during trailer search
🔗 CVE IDs covered (1)
📋 Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires opening an incomplete file without a trailer.
Patches
This has been fixed in pypdf==6.21.4.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #4289.
🎯 Affected products1
- pip/pypdf:< 6.21.4
🔗 References (6)
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-5849-834g-hvw5
- https://nvd.nist.gov/vuln/detail/CVE-2026-119203
- https://github.com/py-pdf/pypdf/pull/4289
- https://github.com/py-pdf/pypdf/commit/06593f993789a4b573dd955730c1a7051128bb2a
- https://github.com/py-pdf/pypdf/releases/tag/6.21.4
- https://github.com/advisories/GHSA-5849-834g-hvw5