{"schemaVersion":3,"id":"CVE-2026-42296","aliases":["GHSA-3775-99mw-8rp4","BIT-argo-workflows-2026-42296","GO-2026-5072","CGA-257q-qpp3-vpqr","CGA-3h9v-cxrj-3qqx","CGA-523g-qxgx-446f","CGA-64p6-7mp6-chxc","CGA-6rgg-vx34-p89g","CGA-79p7-w38q-rgcm","CGA-c7h5-v8wg-2h64","CGA-ch6q-2wwx-f3qv","CGA-g7cp-h93w-fjc6","CGA-vgvc-7qfv-6r4j","CGA-wjf5-v4x9-5gg2","CGA-wr9c-j746-v422"],"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 versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host network access, switch service accounts, override pod security context, add tolerations to schedule on control-plane nodes, or enable SA token mounting. This defeats the stated purpose of the feature. The practical impact depends on what Kubernetes-level controls are in place. Clusters with PodSecurity admission or OPA/Gatekeeper would independently block some of these (like hostNetwork). Clusters that rely on Argo's Strict mode as the primary enforcement layer are fully exposed. This issue has been patched in versions 3.7.14 and 4.0.5.","dates":{"published":"2026-05-09T03:52:03.456Z","modified":"2026-07-15T00:57:44.228Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Go","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","exploitability":7.2,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","exploitability":7.2,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00491,"percentile":0.4097,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.06700000000000005,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00424},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00491,"percentile":0.4097}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00424,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00491,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00491,"percentile":0.4097}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"GITHUB_ARGOPROJ_ARGO-WORKFLOWS","name":"Argo Workflows","source":"github","url":"https://github.com/argoproj/argo-workflows/issues/6441","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-863","name":"Incorrect Authorization","description":"The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/863.html"}],"affected":[{"vendor":"chainguard","product":"argo-workflow-controller-3.6","name":"argo-workflow-controller-3.6","label":"argo-workflow-controller-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflow-controller-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"argo-workflow-controller-fips-3.6","name":"argo-workflow-controller-fips-3.6","label":"argo-workflow-controller-fips-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflow-controller-fips-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"argo-workflow-executor-3.6","name":"argo-workflow-executor-3.6","label":"argo-workflow-executor-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflow-executor-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"argo-workflow-executor-fips-3.6","name":"argo-workflow-executor-fips-3.6","label":"argo-workflow-executor-fips-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflow-executor-fips-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"argo-workflows-3.6","name":"argo-workflows-3.6","label":"argo-workflows-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflows-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"argo-workflows-fips-3.6","name":"argo-workflows-fips-3.6","label":"argo-workflows-fips-3.6","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/argo-workflows-fips-3.6","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"argoproj","product":"argo_workflows","name":"argo workflows","label":"argo_workflows","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.7.14","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0.0, < 4.0.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.7.14 | ≥ 4.0.0, < 4.0.5","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"argo-workflows","label":"Argo Workflows","category":"server-app"}},"hubHref":"/vendor/argoproj/argo_workflows"},{"vendor":"argoproj","product":"argo-workflows","name":"argo-workflows","label":"argo-workflows","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.7.14","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0.0, < 4.0.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.7.14 | ≥ 4.0.0, < 4.0.5","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"argo-workflows","label":"Argo Workflows","category":"server-app"}},"hubHref":"/vendor/argoproj/argo-workflows"},{"vendor":"github.com/argoproj","product":"argo-workflows","name":"github.com/argoproj/argo-workflows","label":"argo-workflows","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/github.com/argoproj/argo-workflows","purlType":"golang","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"argo-workflows","label":"Argo Workflows","category":"server-app"}},"hubHref":null},{"vendor":"github.com/argoproj/argo-workflows","product":"v2","name":"github.com/argoproj/argo-workflows/v2","label":"v2","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/github.com/argoproj/argo-workflows/v2","purlType":"golang","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"github.com/argoproj/argo-workflows","product":"v3","name":"github.com/argoproj/argo-workflows/v3","label":"v3","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/github.com/argoproj/argo-workflows/v3","purlType":"golang","versions":[{"text":"< 3.7.14","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.7.14","eol":null,"hubHref":null},{"vendor":"github.com/argoproj/argo-workflows","product":"v4","name":"github.com/argoproj/argo-workflows/v4","label":"v4","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/github.com/argoproj/argo-workflows/v4","purlType":"golang","versions":[{"text":"≥ 4.0.0, < 4.0.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.0, < 4.0.5","eol":null,"hubHref":null}],"affectedCount":12,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4","label":"github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","Advisory","Exploit","Mitigation","Vendor Advisory"]},{"url":"https://github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950d","label":"github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950d","hostname":"github.com","tags":["X Refsource MISC","WEB","FIX","Patch"]},{"url":"https://github.com/argoproj/argo-workflows/releases/tag/v3.7.14","label":"github.com/argoproj/argo-workflows/releases/tag/v3.7.14","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5","label":"github.com/argoproj/argo-workflows/releases/tag/v4.0.5","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-42296","label":"access.redhat.com/security/cve/CVE-2026-42296","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468446","label":"bugzilla.redhat.com/show_bug.cgi?id=2468446","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json","label":"security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex","WEB"]},{"url":"https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3wf5-g532-rcrr","label":"github.com/argoproj/argo-workflows/security/advisories/GHSA-3wf5-g532-rcrr","hostname":"github.com","tags":["WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42296","label":"nvd.nist.gov/vuln/detail/CVE-2026-42296","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/argoproj/argo-workflows/commit/2727f3f701677d467dfb5e053c57237cbc752c3c","label":"github.com/argoproj/argo-workflows/commit/2727f3f701677d467dfb5e053c57237cbc752c3c","hostname":"github.com","tags":["WEB","FIX"]},{"url":"https://github.com/argoproj/argo-workflows","label":"github.com/argoproj/argo-workflows","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42296.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42296.json","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:21483-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:21483-1"]},"timeline":[{"kind":"published","date":"2026-05-09T03:52:03.456Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-15T00:57:44.228Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":42,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T21:01:59.354Z","stale":false,"partial":false}}