Description
A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.
CVSS 7.1EPSS 1.05%Risk 0.78
View source- Published
- 2026-05-07 12:16:17
- Affected versions
- unknown
- Type
- Core software
- Last modified
- 2026-07-23 12:17:55
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- Operating systems
- Linux