High 8.5Published May 8, 2026

CVE-2026-42297Argo Workflows Is Missing Authorization in Sync ConfigMap Provider

Updated under an hour ago (Oct 26, 2026, 6:30 PM ET)

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It affects argoproj argo-workflows and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for argoproj argo-workflows

Exploited in the last 30 days

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: 8.5 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-862, CWE-425
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

argoproj argo-workflows argoproj:argo_workflows (from the name)	from 4.0.0, < 4.0.5	CNA record
Red Hat Red Hat OpenShift AI (RHOAI) redhat:openshift_ai	Versions not stated	CISA ADP
argoproj argo_workflows argoproj:argo_workflows	from 4.0.0 before 4.0.5	NVD

References

References

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q	x-refsource-confirm, exploit, vendor-advisory
https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6	x-refsource-misc, patch
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5	x-refsource-misc, release-notes
https://access.redhat.com/security/cve/CVE-2026-42297
https://bugzilla.redhat.com/show_bug.cgi?id=2468448
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42297.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.