{"schemaVersion":3,"id":"CVE-2026-54526","aliases":["CGA-273x-5hv2-c3q6","CGA-2c6g-r3j3-jxq4","CGA-4jr6-46hf-c6f8","CGA-4v98-54x7-c9q7","CGA-8qr6-fr8f-vgjw","CGA-hw55-rjj8-6fxc","CGA-q346-432h-mcq8","CGA-qvjj-h4rr-mx77","CGA-v8g6-q497-xc3h","CGA-v8m6-f9mj-5vcc","CGA-xxfq-6r67-hcfj","GHSA-48p8-g2fx-3wwm","BIT-argo-workflows-2026-54526","GO-2026-6223","CGA-2r57-8rqh-w3gm","CGA-3gj5-6255-4w5x","CGA-5865-5m4w-6596","CGA-723h-mr58-mjxj","CGA-9hxj-5qqx-9g2g","CGA-9m2v-v9g9-3p8g","CGA-cvmq-fcmh-hvf7","CGA-fhw5-8447-r955","CGA-gjpf-xpfr-3qq9","CGA-p4gh-gxr2-m8fj","CGA-qxqv-fp32-jj4r","CGA-v5fc-pwxj-xwp3","CGA-vgmj-2hf3-m5wx","CGA-vrhm-49mw-wp99","CGA-x2x6-f5q5-vj57","CGA-xwc9-4f4w-xfg2"],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2026-07-16T19:07:30.804Z","modified":"2026-07-17T13:57:43.413Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.9,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.9,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Wolfi","score":8.9,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · 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