Vulnerability · Published Aug 18, 2025 · Assigned by GitHub_M

CVE-2025-55299VaulTLS has a password-based login exploit in additional user accounts

Critical 9.4

In plain English

A critical-severity security flaw in VaulTLS from 7ritn. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)9.4Critical

Exploit odds (30 days)0.2%top 85.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

VaulTLS is a modern solution for managing mTLS (mutual TLS) certificates. Prior to 0.9.1, user accounts created through the User web UI have an empty but not NULL password set, attackers can use this to login with an empty password. This is combined with that fact, that previously disabling the password based login only effected the frontend, but still allowed login via the API. This vulnerability is fixed in 0.9.1.

Affected products (as reported)

Vendor	Product	Versions
7ritn	VaulTLS	< 0.9.1

Weakness: CWE-521 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References

https://github.com/7ritn/VaulTLS/security/advisories/GHSA-pjfr-pj3h-cw8m x_refsource_CONFIRM
https://github.com/7ritn/VaulTLS/commit/6ac0a43a768f1753f6889ba43f914e773a4b45c0 x_refsource_MISC