VDB
CVE-2026-113794
CVE-2026-113794
PUBLISHED
CVSS 6 MEDIUM
Reported by GitHub_M · Published October 21, 2026
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.
Risk Scores
CVSS 4.0
6
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| py-pdf | pypdf | < 6.20.0 |
| py-pdf | pypdf | 0 |
| wolfi | open-webui | 0 |
| PyPI | pypdf | 0 |
| chainguard | litellm-fips | 0 |
| chainguard | open-webui | 0 |
| chainguard | litellm | 0 |
Timeline
- Oct 21, 2026 CVE Published
- Oct 22, 2026 EPSS Score
- Oct 22, 2026 Coalition ESS Score
- Oct 25, 2026 EPSS Score
- Oct 28, 2026 CVE Updated
- Oct 29, 2026 EPSS Score
- Oct 30, 2026 Security Advisory
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3 x_refsource_CONFIRM
- https://github.com/py-pdf/pypdf/issues/4169 x_refsource_MISC
- https://github.com/py-pdf/pypdf/pull/4170 x_refsource_MISC
- https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58 x_refsource_MISC
- https://github.com/py-pdf/pypdf/releases/tag/6.20.0 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-113794 advisory
- https://github.com/advisories/GHSA-39mj-jf6j-2qj3 advisory