{"cve":"CVE-2026-54526","nvd":{"published":"2026-07-16T19:16:50.373","modified":"2026-10-24T20:10:00.137","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.","cvss_v4":{"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","score":8.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9},"cwes":["CWE-284"],"references":["https://github.com/argoproj/argo-workflows/commit/277e9cef0ad16d7eaaab253573d0695951a65dbd","https://github.com/argoproj/argo-workflows/commit/358cc3968c8f06f1be0967e41df191088db0b662","https://github.com/argoproj/argo-workflows/releases/tag/v3.7.15","https://github.com/argoproj/argo-workflows/releases/tag/v4.0.6","https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm"],"products":["argoproj:argo_workflows"],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-54526","score":0.00553,"percentile":0.45903,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-48p8-g2fx-3wwm","url":"https://osv.dev/vulnerability/GHSA-48p8-g2fx-3wwm","summary":"Argo Workflows: ArtifactGC.PodSpecPatch bypasses Strict/Secure template reference allow-list (Incomplete fix for CVE-2026-31892)","modified":"2026-09-10T03:51:13.104505523Z","packages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v4","purl":"pkg:golang/github.com/argoproj/argo-workflows/v4","ranges":[">=4.0.0 <4.0.6"],"fixed":["4.0.6"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v3","purl":"pkg:golang/github.com/argoproj/argo-workflows/v3","ranges":["<3.7.15"],"fixed":["3.7.15"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows","purl":"pkg:golang/github.com/argoproj/argo-workflows","ranges":["<=2.5.3-rc4"],"fixed":[]}]},{"id":"GO-2026-6223","url":"https://osv.dev/vulnerability/GO-2026-6223","summary":"Argo Workflows: ArtifactGC.PodSpecPatch bypasses Strict/Secure template reference allow-list (Incomplete fix for CVE-2026-31892) in github.com/argoproj/argo-workflows","modified":"2026-08-18T14:56:00.633429488Z","packages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows","purl":"pkg:golang/github.com/argoproj/argo-workflows","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v2","purl":"pkg:golang/github.com/argoproj/argo-workflows/v2","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v3","purl":"pkg:golang/github.com/argoproj/argo-workflows/v3","ranges":["<3.7.15"],"fixed":["3.7.15"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v4","purl":"pkg:golang/github.com/argoproj/argo-workflows/v4","ranges":[">=4.0.0 <4.0.6"],"fixed":["4.0.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}