PT-2026-27492 · Pyload · Pyload

Yueyuel · CVE-2026-33511 · Published 2026-03-24 · Updated 2026-03-25

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions pyLoad versions 0.4.20 through 0.5.0b3.dev96

Description pyLoad, a download manager written in Python, contains a flaw in its ClickNLoad feature. The local check decorator can be circumvented through HTTP Host header spoofing. This allows unauthenticated remote attackers to access endpoints restricted to localhost. Successful exploitation enables attackers to inject arbitrary downloads, write files to the storage directory, and execute JavaScript code.

Recommendations Update to version 0.5.0b3.dev97 or later.

Exploit

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-33511

GHSA-G5J2-GXQH-X7PW

Affected Products

Pyload

References · 5

• 🔥 https://github.com/pyload/pyload/security/advisories/GHSA-g5j2-gxqh-x7pw · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33511.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-33511 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33511 · Security Note
• https://twitter.com/VulmonFeeds/status/2036639042435961179 · Twitter Post