GHSA-4vqv-7265-gm2wHigh
pypdf has possible large memory usage for exceptions in strict mode
🔗 CVE IDs covered (1)
📋 Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires loading an invalid dictionary.
Patches
This has been fixed in pypdf==6.21.3.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #4265.
🎯 Affected products1
- pip/pypdf:< 6.21.3
🔗 References (6)
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vqv-7265-gm2w
- https://nvd.nist.gov/vuln/detail/CVE-2026-119207
- https://github.com/py-pdf/pypdf/pull/4265
- https://github.com/py-pdf/pypdf/commit/64270258c0eced720f7960aecf8cef31afd39f8d
- https://github.com/py-pdf/pypdf/releases/tag/6.21.3
- https://github.com/advisories/GHSA-4vqv-7265-gm2w