Resource exhaustion in Py-pdf Pypdf
CVE-2026-57204
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is…
Vulnerability class: DoS (Denial of Service)
Affected products
- Py-pdf Pypdf — versions < 6.13.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)