Secuno
ENNL
Book demo

CVE-2026-42297

Argoproj Argo Workflows broken access control

8.3 HIGHPublic exploitEPSS 0.53%
  1. Published9 May 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Affected products

Argoproj Argo Workflows≥ 4.0.0 < 4.0.5

Remediation

Fixed in
Argoproj Argo Workflows≥ 4.0.5

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843158.3
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, Nginx UI…
CVE-2026-877449.1
A flaw was found in Quarkus REST Data Panache. This vulnerability allows…
CVE-2026-571189.8
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59,…
CVE-2026-1092018.3
LogicalDOC Community Edition through 9.3 contains a missing authorization vulnerability…
CVE-2026-1091858.8
jshERP through 3.6 contains a missing authorization vulnerability in the UserController…
CVE-2026-1087188.1
Rill 0.77.0 through 0.90.5 contains a missing authorization vulnerability in the admin…

Frequently asked

Is CVE-2026-42297 being actively exploited?

CVE-2026-42297 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.53%.

How severe is CVE-2026-42297?

CVE-2026-42297 has a CVSS 3.1 base score of 8.3, rated high. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2026-42297?

Affected products include Argoproj Argo Workflows.

How do I fix CVE-2026-42297?

Upgrade affected software to a fixed version, for example Argoproj Argo Workflows 4.0.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-42297 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.