Homer: Complete Authentication Bypass When coordinator.jwt.secret Is Empty (Default)

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)
• Critical severity: CVSS 9.8

[ Description ]Official description

Homer is open source telecom observability software. Prior to version 11.0.283, both JWT middleware functions (`JWTMiddleware` and `JWTMiddlewareV4`) immediately return `next(c)` when `jwtSecret == ""`. The JWT secret defaults to an empty string. On a default installation, all protected API endpoints under `/api/v1`, `/api/v3`, and `/api/v4` are completely unauthenticated. Version 11.0.283 patches the issue.

[ Fixes ]Fixes and patches

• github.com/sipcapture/homer-app 0.0.0-20260625093330-5e90809657c9Fixed version · GitHub Advisories · go package github.com/sipcapture/homer-app: upgrade to 0.0.0-20260625093330-5e90809657c9 or later (affected < 0.0.0-20260625093330-5e90809657c9)

[ Packages ]Affected open-source packages

• github.com/sipcapture/homer-app goAffected < 0.0.0-20260625093330-5e90809657c9 · fixed in 0.0.0-20260625093330-5e90809657c9 · GHSA-rqcc-94gv-wjm9

[ References ]References

• github.com/sipcapture/homer/commit/5e90809657c9df321db191a69c6050f873f5646b
• github.com/sipcapture/homer/pull/839
• github.com/sipcapture/homer/releases/tag/11.0.283
• github.com/sipcapture/homer/security/advisories/GHSA-rqcc-94gv-wjm9