Auth bypass in Openchoreo

CVE-2026-73842

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, internal/cluster-gateway/server.go exposed /api/proxy/, /api/exec/, and /api/wirelogs/ on an internal listener without requiring a client certificate or token, allowing any network-reachable caller to read tenant Kubernetes Secrets, mutate workloads, and execute commands across connected data planes. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (17.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-73842: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Openchoreo — versions < 1.0.3, >= 1.1.0, < 1.1.3, >= 1.2.0-rc.1, < 1.2.0-rc.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73842?
CVE-2026-73842 is a critical-severity vulnerability in Openchoreo, classified under Improper Privilege Management. CVSS score: 9.0/10. Published 2026-08-13.
How severe is CVE-2026-73842?
Critical severity. CVSS v3 base score is 9.0 out of 10.