CVE-2026-62253: Homer: Complete Authentication Bypass When coordinator.jwt.secret Is Empty (Default)

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-07 · updated 2026-10-10
Weakness: CWE-306

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.

Affected products

sipcapture homer: before 11.0.283

References

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

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