Resource exhaustion in Pyload
CVE-2025-57751
pyLoad is the free and open-source Download Manager written in pure Python. The jk parameter is received in pyLoad CNL Blueprint. Due to the lack of jk parameter verification, the jk parameter input by the user is directly determined as dykpy.evaljs(), resulting in the server CPU being fully occupied and the web-ui becoming unresponsive. This vulnerability is fixed in 0.5.0b3.dev92.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.003 (24.6th percentile) — read the EPSS interpretation.
Affected products
- Pyload — versions < 0.5.0b3.dev92
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2025-57751?
- CVE-2025-57751 is a vulnerability in Pyload, classified under Uncontrolled Resource Consumption. Published 2025-08-21.
- Is CVE-2025-57751 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.