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VulnerabilityCVE-2026-73843Published 2026-08-13

CVE-2026-73843 — openchoreo

critical

As of 2026-08-14, CVE-2026-73843 is a CRITICAL-severity vulnerability in openchoreo, CVSS v3.1 9.6, EPSS 0.2% (21.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-73843 as of 2026-08-14; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v3.1
9.6/10Critical
EPSS
0.2%Higher than 21.6% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
0None linked yet
Priority
5.7/10Threadlinqs triage score
Published
Updated 2026-08-14
CVSS v3.1 9.6 (CRITICAL) · EPSS 0.2% (higher than 21.6% of all scored CVEs) · Priority 5.7/10 · Published 2026-08-13

Last updated:

What is CVE-2026-73843?

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.2 and 1.1.2, internal/cluster-gateway/server.go served caller-facing management APIs on the externally reachable agent listener without authentication, allowing network-reachable attackers to invoke /api/proxy/ and /api/exec/ operations, proxy the data-plane Kubernetes API, and execute commands in workload pods in multi-cluster deployments. This issue is fixed in versions 1.0.2 and 1.1.2.

The record classifies CVE-2026-73843 under weakness classes CWE-306, CWE-668, CWE-862. Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 53 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.6 — CRITICAL
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (FIRST)
0.2% probability of exploitation in the next 30 days, higher than 21.6% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
5.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-08-13, last modified 2026-08-14

Is CVE-2026-73843 being exploited?

It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-73843

No vendor patch reference has been recorded for CVE-2026-73843 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-73843

No threat campaign in the Threadlinqs corpus currently references CVE-2026-73843, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch

Other references

Showing 6 of 7 recorded references.