8.1

CVE-2026-42296

Exploit

Argo Workflows has incomplete fix for CVE-2026-31892: hostNetwork, securityContext, serviceAccountName bypass templateReferencing Strict/Secure

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host network access, switch service accounts, override pod security context, add tolerations to schedule on control-plane nodes, or enable SA token mounting. This defeats the stated purpose of the feature. The practical impact depends on what Kubernetes-level controls are in place. Clusters with PodSecurity admission or OPA/Gatekeeper would independently block some of these (like hostNetwork). Clusters that rely on Argo's Strict mode as the primary enforcement layer are fully exposed. This issue has been patched in versions 3.7.14 and 4.0.5.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Argoproj ≫ Argo Workflows SwPlatformgo Version < 3.7.14
Argoproj ≫ Argo Workflows SwPlatformgo Version >= 4.0.0 < 4.0.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.34
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5
Release Notes
https://github.com/argoproj/argo-workflows/releases/tag/v3.7.14
Release Notes
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4
Vendor Advisory
Exploit
Mitigation
https://github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950d
Patch
https://access.redhat.com/security/cve/CVE-2026-42296
https://bugzilla.redhat.com/show_bug.cgi?id=2468446
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json