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Vulnerability record · CVE-2026-42297 · published 9 May 2026

CVE-2026-42297: Argoproj argo workflows missing authorization vulnerability

Argoproj · Argo Workflows

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, the Sync Service's ConfigMap-backed provider (server/sync/sync_cm.go) performs zero authorization checks on all CRUD operations (create, read, update, delete). Any authenticated user — including those using fake Bearer tokens — can create, read, update, and delete Kubernetes ConfigMaps containing synchronization limits. This issue has been patched in version 4.0.5.

8.5 CVSS 4.0 High EPSS 0.53% · top 57.8% CWE-862 · Missing authorizationCWE-425 · CWE-425
8.5CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
24 Jul 2026Last modified by NVD

Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, the Sync Service's ConfigMap-backed provider (server/sync/sync_cm.go) performs zero authorization checks on all CRUD operations (create, read, update, delete). Any authenticated user — including those using fake Bearer tokens — can create, read, update, and delete Kubernetes ConfigMaps containing synchronization limits. This issue has been patched in version 4.0.5.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6 Patch
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5 Release Notes
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q ExploitVendor Advisory
https://access.redhat.com/security/cve/CVE-2026-42297
https://bugzilla.redhat.com/show_bug.cgi?id=2468448
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q ExploitVendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42297.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-42297), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.