VDB
CISA-2026-27024
CISA-2026-27024
PUBLISHED
CVSS 6.9 MEDIUM
Reported by GitHub_M · Published February 20, 2026
pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1.
Risk Scores
CVSS 4.0
6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| py-pdf | pypdf | < 6.7.1 |
| py-pdf | pypdf | < 6.7.1, < 6.7.1 |
Timeline
- Feb 20, 2026 CVE Published
- Feb 24, 2026 CVE Updated
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-996q-pr4m-cvgq x_refsource_CONFIRM
- https://github.com/py-pdf/pypdf/pull/3645 x_refsource_MISC
- https://github.com/py-pdf/pypdf/commit/bd2f6d052fe5941e85e37082c2a43453d48d1295 x_refsource_MISC
- https://github.com/py-pdf/pypdf/releases/tag/6.7.1 x_refsource_MISC