CVE-2026-73842: openchoreo Improper Privilege Management
Vulnerability summary
CVE-2026-73842 is a critical (CVSS 9.0) Improper Privilege Management vulnerability in openchoreo. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 13-08-2026PublishedVulnerability first disclosed.
- 18-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated9.0CriticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVDNIST9.0CriticalCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
+0.09 pp
From 0.18% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
- CWE-306Missing Authentication for Critical FunctionThe product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
- CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Affected systems
Github.com/openchoreo1 product
- openchoreo< 1.0.3 | ≥ 1.1.0, < 1.1.3 | ≥ 1.2.0-rc.1, < 1.2.0
Openchoreo1 product
- openchoreo< 1.0.3 | ≥ 1.1.0, < 1.1.3 | ≥ 1.2.0-rc.1, < 1.2.0-rc.2
2 vendors · 2 products
References
12 links- github.com/openchoreo/openchoreo/security/advisories/GHSA-rh53-xvx2-j327X Refsource CONFIRMWEBAdvisory
- github.com/openchoreo/openchoreo/commit/50fcae3f1753fd0ac3ae655a3fc080a761c49c04X Refsource MISCWEBFIX
- github.com/openchoreo/openchoreo/commit/93e6f10953cfc249af2222ddb6730d4b0a729129X Refsource MISCWEBFIX
- github.com/openchoreo/openchoreo/commit/e3da3c63dcf0895c693cb17ce142ef95e959b62aX Refsource MISCWEBFIX
