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:

Use Tor Browser to access .onion links.

Check our team here:

https://tatramed.sk/exploit-52-cve-2021-26291/

https://tatramed.sk/exploit-709-cve-2021-37137/

https://tatramed.sk/exploit-11-cve-2012-0507/

https://tatramed.sk/exploit-492-cve-2025-49556/

https://tatramed.sk/exploit-824-cve-2025-22235/