Open 5GS WebUI uses a hard-coded JWT signing key (change-me) whenever the environment variable JWT_SECRET_KEY is unset
Conclusion & alert: CVE-2026-0622 is rated Low Risk (31.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-22 | 0.02% | 0.05% | +0.03% |
| 2 | 2026-01-21 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| URL | Tags |
|---|---|
| https://github.com/open5gs/open5gs/issues/2264 | Vendor Advisory Issue Tracking |
| https://github.com/open5gs/open5gs/issues/856 | Issue Tracking |
| https://github.com/open5gs/open5gs/pull/857 | Issue Tracking Patch |
| https://www.kb.cert.org/vuls/id/458022 | Third Party Advisory |