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Vulnerability record · CVE-2026-92720 · published 16 September 2026

CVE-2026-92720: Missing authentication for critical function vulnerability

Kubero through 3.1.1 fails to apply authentication guards to the notifications API endpoints, allowing unauthenticated attackers to read webhook secrets and service URLs. Attackers can retrieve stored credentials and register malicious webhooks to intercept pipeline events or suppress alerting by deleting existing configurations.

9.3 CVSS 4.0 Critical EPSS 0.63% · top 51.8% CWE-306 · Missing authentication for critical function Deferred
9.3CVSS 4.0 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
24 Sep 2026Last modified by NVD

Description

Kubero through 3.1.1 fails to apply authentication guards to the notifications API endpoints, allowing unauthenticated attackers to read webhook secrets and service URLs. Attackers can retrieve stored credentials and register malicious webhooks to intercept pipeline events or suppress alerting by deleting existing configurations.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/kubero-dev/kubero
https://github.com/kubero-dev/kubero/blob/v3.1.1/server/src/main.ts
https://github.com/kubero-dev/kubero/blob/v3.1.1/server/src/notifications/notifications.controller.ts#L23-L33
https://github.com/kubero-dev/kubero/issues/753
https://www.vulncheck.com/advisories/kubero-through-3.1.1-unauthenticated-notifications-api-access

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Source: NIST National Vulnerability Database (record CVE-2026-92720), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.