CVE-2026-54526 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-54526HIGH

argoproj argo-workflows — Argo Workflows: Incomplete fix for CVE-2026-31892: ArtifactGC.PodSpecPatch bypass of Strict/Secure templateReferencing

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   P   L   N   H   H   N    8.9   .0036   29.5     —

AFFECTED
  Product         Versions    Fixed
  argo-workflows  < 3.7.15 –  —

TIMELINE
  Jun 15  Reserved by GitHub_M
  Jul 16  EXPLOIT PUBLISHED — CVE-2026-54526 (argoproj argo-workflows). Public exploit reference added.
  Jul 16  Published (CNA: GitHub_M)

CWE-284 · CNA: GitHub_M · CVSS v4.0 · 5 references · NVD status: Analyzed

Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 3.7.15 and 4.0.6, the allow-list fix for CVE-2026-31892 is incomplete because workflow/util/merge.go ValidateUserOverrides and SanitizeUserWorkflowSpec walk only the top-level fields of WorkflowSpec via reflection, and WorkflowSpec.ArtifactGC is allow-listed wholesale; the struct behind that field, WorkflowLevelArtifactGC, has a PodSpecPatch sub-field whose contents flow unmodified into util.ApplyPodSpecPatch on the artifact-GC pod, the same sink the original fix closed for WorkflowSpec.PodSpecPatch, so a user submitting a Workflow under templateReferencing: Strict or Secure (against a referenced WorkflowTemplate that declares an output artifact and setting spec.artifactGC.strategy: OnWorkflowCompletion) can still inject an arbitrary strategic merge patch into the artifact-GC pod, including hostPath volumes, privileged: true, arbitrary image and command, and hostNetwork: true, defeating the stated purpose of Strict/Secure reference mode. This issue is fixed in versions 3.7.15 and 4.0.6.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 15, 2026	Reserved	Reserved by GitHub_M
July 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-54526 (argoproj argo-workflows). Public exploit reference added.
July 16, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
argoproj	argo-workflows	—	< 3.7.15	—

Weaknesses

CWE-284

References (5)

https://github.com/argoproj/argo-workflows/commit/277e9cef0ad16d7eaaab253573d0695951a65dbd [Patch]
https://github.com/argoproj/argo-workflows/commit/358cc3968c8f06f1be0967e41df191088db0b662 [Patch]
https://github.com/argoproj/argo-workflows/releases/tag/v3.7.15 [Product, Release Notes]
https://github.com/argoproj/argo-workflows/releases/tag/v4.0.6 [Product, Release Notes]
https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-54526 at cve.org

Vendors: argoproj

Weaknesses: CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-54526 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.