Home/CVE/Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From ve
CVE

CVE-2026-42297

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From ve

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.

HIGH · CVSS 8.3 EPSS 0.00014
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-862Missing Authorization
▤

Affected Products & Versions

1
argoproj argo workflows>= 4.0.0 and < 4.0.5
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/argoproj/argo-workflows/v4 HIGH fixed in 4.0.5
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-xchc-cqwg-g76qgithub.com
▣

Scoring & Timeline

8.3
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 May 2026 · 04:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6Patch
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5Release Notes
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