CVE-2026-42297HIGH 8.3EPSS p36.1%

CVE-2026-42297CVE-2026-42297

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.

Scoring

CVSS 3.18.3 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
EPSS0.46% probability of exploitation · percentile 36.1% · 2026-06-19T12:03:05Z
Published2026-05-09
Last modified2026-05-15

Underlying weaknesses· 1

CWE-862

References

  1. https://github.com/argoproj/argo-workflows/commit/09fff05e0830c14a5e36cc40597ad84881db1ab6
  2. https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5
  3. https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q
  4. https://github.com/argoproj/argo-workflows/security/advisories/GHSA-xchc-cqwg-g76q

1

TypeTargetConfidenceTier
WeaknessMissing Authorizationcwe-8620%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-42296
CVE
CVE-2026-31892
CVE
CVE-2025-55190
CVE
CVE-2026-42880
CVE
CVE-2025-62156
CVE
CVE-2026-27173
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.