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VulnerabilityCVE-2026-73666Published 2026-08-13

CVE-2026-73666 — openchoreo backstage-plugins

high

As of 2026-08-14, CVE-2026-73666 is a HIGH-severity vulnerability in openchoreo backstage-plugins, CVSS v3.1 8.2, EPSS 0.4% (39.2th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-73666 as of 2026-08-14; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v3.1
8.2/10High
EPSS
0.4%Higher than 39.2% 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 8.2 (HIGH) · EPSS 0.4% (higher than 39.2% of all scored CVEs) · Priority 5.7/10 · Published 2026-08-13

Last updated:

What is CVE-2026-73666?

OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/* without authentication and allowing unauthenticated catalog reads, scaffolder log reads, and catalog location creation or deletion. This issue is fixed in versions 1.0.4, 1.1.4, and 1.2.1.

The record classifies CVE-2026-73666 under weakness class CWE-306. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 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
8.2 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS (FIRST)
0.4% probability of exploitation in the next 30 days, higher than 39.2% 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-2026-73666 being exploited?

It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-73666

No vendor patch reference has been recorded for CVE-2026-73666 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-2026-73666

No threat campaign in the Threadlinqs corpus currently references CVE-2026-73666, 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 12 recorded references.