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    CVE-2026-93991

    Argo Workflows versions 4.1.0 through 4.1.3 contain an authorization bypass vulnerability in ListArchivedWorkflows that fails to apply cluster-scoped access review when the metadata.namespace field selector uses the NotEquals operator. Attackers with namespace-scoped list permissions can use a negated namespace field selector to retrieve archived workflows from all other namespaces, exposing spec arguments, parameter values, and annotations.

    Published:Sep 19, 2026
    Last Modified:Sep 21, 2026
    EPS:Sep 19, 2026
    EPSS Score:0.00326
    CVSS Score:7.7

    Affected Products

    Vendor
    Argoproj
    Product
    Argo-workflows
    Vendor
    Argoproj
    Product
    Argo Workflows

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-42183 (CVSS 2.3) — Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernete…
    CVE-2026-42297 (CVSS 8.5) — Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernete…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High