golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request whose Authorization header consists of Bearer followed by many period characters, a call to that function incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This issue is fixed in 5.2.2 and 4.5.2.
Published: 2025-03-21
CVSS: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Download Exploit for CVE-2025-30204 here:
Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.
https://augustaverburg.nl/exploit-558-cve-2025-53066/
https://augustaverburg.nl/exploit-725-cve-2025-20354/
https://augustaverburg.nl/exploit-702-cve-2025-11458/