PT-2025-34274 · Pyload · Pyload

Cyjhhh · Published 2025-08-21 · Updated 2025-08-21 · CVE-2025-57751

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: pyLoad versions prior to 0.5.0b3.dev92

Description: The jk parameter in the pyLoad CNL Blueprint lacks proper verification. This allows a user-supplied jk parameter to be directly passed to dykpy.evaljs(), leading to full server CPU utilization and rendering the web-ui unresponsive. The vulnerable code is located in cnl blueprint.py and misc.py. The /flash/addcrypted2 API endpoint is affected. The jk parameter is vulnerable.

Recommendations: Update pyLoad to version 0.5.0b3.dev92 or later.

Exploit

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2025-57751

GHSA-9GJJ-6GJ7-C4WJ

Affected Products

Pyload

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57751.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-57751 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-9gjj-6gj7-c4wj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-57751 · Security Note
• https://github.com/pyload/pyload · Note
• https://github.com/pyload/pyload/security/advisories/GHSA-9gjj-6gj7-c4wj · Note
• https://twitter.com/CVEnew/status/1958603374167040225 · Twitter Post
• https://t.me/CVEtracker/30624 · Telegram Post
• https://t.me/cveNotify/133088 · Telegram Post