# CVE-2026-73843 — openchoreo

> 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.

**Last updated:** 2026-08-14

## 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](https://intel.threadlinqs.com/cwe/CWE-306), [CWE-668](https://intel.threadlinqs.com/cwe/CWE-668), [CWE-862](https://intel.threadlinqs.com/cwe/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

- [openchoreo](https://intel.threadlinqs.com/vendors/openchoreo): openchoreo

## 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 2026-08-15. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/openchoreo/openchoreo/security/advisories/GHSA-qh9r-j7rp-4x2m)

**Other references**

- [github.com](https://github.com/openchoreo/openchoreo/pull/4122)
- [github.com (047d80ddc63b4b4b9dd67044d5cffcdbd77685ce)](https://github.com/openchoreo/openchoreo/commit/047d80ddc63b4b4b9dd67044d5cffcdbd77685ce)
- [github.com (0aa0ffe1623bd8eb4235cb2a5854336695953c3a)](https://github.com/openchoreo/openchoreo/commit/0aa0ffe1623bd8eb4235cb2a5854336695953c3a)
- [github.com (b42eeb0f5dce95195a9781d7c5a1fe9e38f5da8f)](https://github.com/openchoreo/openchoreo/commit/b42eeb0f5dce95195a9781d7c5a1fe9e38f5da8f)
- [github.com (v1.0)](https://github.com/openchoreo/openchoreo/releases/tag/v1.0.2)

_Showing 6 of 7 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-73843
Full detection coverage and IOCs for threats exploiting CVE-2026-73843 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp