{"cve":"CVE-2026-31892","nvd":{"published":"2026-03-11T16:16:44.033","modified":"2026-07-15T02:19:51.447","status":"Modified","description":"Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 2.9.0 to before 4.0.2 and 3.7.11, A user who can submit Workflows can completely bypass all security settings defined in a WorkflowTemplate by including a podSpecPatch field in their Workflow submission. This works even when the controller is configured with templateReferencing: Strict, which is specifically documented as a mechanism to restrict users to admin-approved templates. The podSpecPatch field on a submitted Workflow takes precedence over the referenced WorkflowTemplate during spec merging and is applied directly to the pod spec at creation time with no security validation. This vulnerability is fixed in 4.0.2 and 3.7.11.","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:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-863","CWE-807"],"references":["https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3wf5-g532-rcrr","https://access.redhat.com/errata/RHSA-2026:10184","https://access.redhat.com/security/cve/CVE-2026-31892","https://bugzilla.redhat.com/show_bug.cgi?id=2446551","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31892.json"],"products":["argoproj:argo_workflows"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-31892","score":0.00518,"percentile":0.44078,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3wf5-g532-rcrr","url":"https://osv.dev/vulnerability/GHSA-3wf5-g532-rcrr","summary":"Argo Workflows: WorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference Mode","modified":"2026-09-10T03:50:36.947636241Z","packages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v4","purl":"pkg:golang/github.com/argoproj/argo-workflows/v4","ranges":["<4.0.2"],"fixed":["4.0.2"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v3","purl":"pkg:golang/github.com/argoproj/argo-workflows/v3","ranges":["<3.7.11"],"fixed":["3.7.11"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows","purl":"pkg:golang/github.com/argoproj/argo-workflows","ranges":[">=2.9.0"],"fixed":[]}]},{"id":"GO-2026-4681","url":"https://osv.dev/vulnerability/GO-2026-4681","summary":"Argo Workflows: WorkflowTemplate Security Bypass via podSpecPatch in Strict/Secure Reference Mode in github.com/argoproj/argo-workflows","modified":"2026-03-23T04:56:07.259709256Z","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":[">=2.9.0"],"fixed":[]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v3","purl":"pkg:golang/github.com/argoproj/argo-workflows/v3","ranges":["<3.7.11"],"fixed":["3.7.11"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-workflows/v4","purl":"pkg:golang/github.com/argoproj/argo-workflows/v4","ranges":["<4.0.2"],"fixed":["4.0.2"]}]}],"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."]}