What’s Vulnerable › Vulnerabilities
CVE-2025-57751: Denial-of-Service attack in pyLoad CNL Blueprint using dukpy.evaljs
- Severity: high (CVSS 7.7 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-08-21 · updated 2026-06-17
- Weakness: CWE-400
Description
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.
Affected products
- pyload: before 0.5.0b3.dev92
References
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