CVE-2026-54526

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54526", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T18:40:01.651Z", "datePublished": "2026-07-16T19:07:30.804Z", "dateUpdated": "2026-07-17T13:57:43.413Z"}, "containers": {"cna": {"title": "Argo Workflows: Incomplete fix for CVE-2026-31892: ArtifactGC.PodSpecPatch bypass of Strict/Secure templateReferencing", "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "lang": "en", "description": "CWE-284: Improper Access Control", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 8.9, "baseSeverity": "HIGH", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm"}, {"name": "https://github.com/argoproj/argo-workflows/commit/277e9cef0ad16d7eaaab253573d0695951a65dbd", "tags": ["x_refsource_MISC"], "url": "https://github.com/argoproj/argo-workflows/commit/277e9cef0ad16d7eaaab253573d0695951a65dbd"}, {"name": "https://github.com/argoproj/argo-workflows/commit/358cc3968c8f06f1be0967e41df191088db0b662", "tags": ["x_refsource_MISC"], "url": "https://github.com/argoproj/argo-workflows/commit/358cc3968c8f06f1be0967e41df191088db0b662"}, {"name": "https://github.com/argoproj/argo-workflows/releases/tag/v3.7.15", "tags": ["x_refsource_MISC"], "url": "https://github.com/argoproj/argo-workflows/releases/tag/v3.7.15"}, {"name": "https://github.com/argoproj/argo-workflows/releases/tag/v4.0.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/argoproj/argo-workflows/releases/tag/v4.0.6"}], "affected": [{"vendor": "argoproj", "product": "argo-workflows", "versions": [{"version": "< 3.7.15", "status": "affected"}, {"version": ">= 4.0.0, < 4.0.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-16T19:07:30.804Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-48p8-g2fx-3wwm", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-17T13:57:39.248649Z", "id": "CVE-2026-54526", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-17T13:57:43.413Z"}}]}}

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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."}, {"lang": "es", "value": "Argo Workflows es un motor de flujo de trabajo nativo de contenedores de c\u00f3digo abierto para orquestar trabajos paralelos en Kubernetes. Antes de las versiones 3.7.15 y 4.0.6, la correcci\u00f3n de la lista de permitidos para CVE-2026-31892 es incompleta porque workflow/util/merge.go ValidateUserOverrides y SanitizeUserWorkflowSpec recorren solo los campos de nivel superior de WorkflowSpec a trav\u00e9s de reflexi\u00f3n, y WorkflowSpec.ArtifactGC est\u00e1 en la lista de permitidos en su totalidad; la estructura detr\u00e1s de ese campo, WorkflowLevelArtifactGC, tiene un subcampo PodSpecPatch cuyos contenidos fluyen sin modificar a util.ApplyPodSpecPatch en el pod de recolecci\u00f3n de elementos (artifact-GC pod), el mismo sumidero que la correcci\u00f3n original cerr\u00f3 para WorkflowSpec.PodSpecPatch, por lo que un usuario que env\u00eda un flujo de trabajo bajo templateReferencing: Strict o Secure (contra un WorkflowTemplate referenciado que declara un artefacto de salida y establece spec.artifactGC.strategy: OnWorkflowCompletion) a\u00fan puede inyectar un parche de fusi\u00f3n estrat\u00e9gico arbitrario en el pod de recolecci\u00f3n de elementos (artifact-GC pod), incluyendo vol\u00famenes hostPath, privileged: true, imagen y comando arbitrarios, y hostNetwork: true, frustrando el prop\u00f3sito declarado del modo de referencia Strict/Secure. Este problema est\u00e1 solucionado en las versiones 3.7.15 y 4.0.6."}], "id": "CVE-2026-54526", "lastModified": "2026-10-24T20:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54526", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-17T13:57:39.248649Z", "version": "2.0.3"}}]}, "published": "2026-07-16T19:16:50.373", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/argoproj/argo-workflows/commit/277e9cef0ad16d7eaaab253573d0695951a65dbd"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/argoproj/argo-workflows/commit/358cc3968c8f06f1be0967e41df191088db0b662"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/argoproj/argo-workflows/releases/tag/v3.7.15"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/argoproj/argo-workflows/releases/tag/v4.0.6"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/argoproj/argo-workflows/security/advisories/GHSA-48p8-g2fx-3wwm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.7.15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "argo-workflows", "source": "cna", "vendor": "argoproj"}, "product": "argo-workflows", "vendor": "argoproj"}], "created": "2026-07-16T20:30:05.157154+00:00", "updated": "2026-07-31T01:30:05.634910+00:00", "vendors": ["argoproj", "argoproj$PRODUCT$argo-workflows"]}