Resource exhaustion in Python
CVE-2025-13837
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues
Vulnerability class: DoS (Denial of Service)
EPSS: 0.002 (9.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Python — versions 3.15.0
- Python Software Foundation Cpython — versions 0, 3.11.0, 3.12.0
Weakness classification (CWE)
References
- cna@python.org (Patch, patch, Issue Tracking)
- cna@python.org (issue-tracking, Patch, Issue Tracking)
- cna@python.org (Patch, patch)
- cna@python.org (Patch, patch)
- cna@python.org (Patch, patch)
- cna@python.org (vendor-advisory, Vendor Advisory)
- cna@python.org (Patch, patch)
- cna@python.org (patch)
- cna@python.org (patch)
Frequently asked questions
- What is CVE-2025-13837?
- CVE-2025-13837 is a medium-severity vulnerability in Python, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2025-12-01.
- How severe is CVE-2025-13837?
- Medium severity. CVSS v3 base score is 5.5 out of 10.