Vulnerability · Published Jul 13, 2026 · Assigned by VulDB
CVE-2026-15542will-moss Isaiah Websocket Connection Authentication main.go improper authentication
High 7.3
In plain English
A high-severity improper authentication in Isaiah from will-moss. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.7%top 46.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability has been found in will-moss Isaiah up to 1.36.9. This affects an unknown function of the file app/main.go of the component Websocket Connection Authentication. The manipulation leads to improper authentication. The attack can be initiated remotely. The pull request to fix this issue awaits acceptance.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
References
- VDB-377892 | will-moss Isaiah Websocket Connection Authentication main.go improper authentication vdb-entry
- VDB-377892 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-15542 | CVE Analysis and Report third-party-advisory
- Submit #855075 | will-moss Isaiah 1.36.9 CWE-287 Improper Authentication third-party-advisory
- https://github.com/will-moss/isaiah/issues/33 issue-tracking
- https://github.com/will-moss/isaiah/pull/36 issue-tracking, patch
- https://github.com/will-moss/isaiah/ product