by Kastro
Paper/Archive/CVE-2026-62253

CVE-2026-62253

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

EPSS 0.5%public exploitCVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 45.2.452 × 209.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
homer< 11.0.283–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/sipcapture/homer/security/advisories/GHSA-rqcc-94gv-wjm9refgithub.com/sipcapture/homer/pull/839refgithub.com/sipcapture/homer/commit/5e90809657c9df321db191a69c6050f873f5646brefgithub.com/sipcapture/homer/releases/tag/11.0.283