{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-14987", "assignerOrgId": "61241ed8-fa44-4f23-92db-b8c443751968", "state": "PUBLISHED", "assignerShortName": "Temporal", "dateReserved": "2025-12-19T19:19:01.833Z", "datePublished": "2025-12-30T20:16:20.154Z", "dateUpdated": "2025-12-30T20:16:20.154Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://github.com/temporalio/temporal", "defaultStatus": "unaffected", "packageName": "temporal", "product": "Temporal", "repo": "https://github.com/temporalio/temporal", "vendor": "Temporal", "versions": [{"lessThanOrEqual": "1.29.1", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "1.28.1", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "1.27.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "When <code>system.enableCrossNamespaceCommands</code> is enabled (on by default), the Temporal server permits certain workflow task commands (e.g. <code>StartChildWorkflowExecution</code>, <code>SignalExternalWorkflowExecution</code>, <code>RequestCancelExternalWorkflowExecution</code>) to target a different namespace than the namespace authorized at the gRPC boundary. The frontend authorizes <code>RespondWorkflowTaskCompleted</code> based on the outer request namespace, but the history service later resolves and executes the command using the namespace embedded in command attributes without authorizing the caller for that target namespace. This can allow a worker authorized for one namespace to create, signal, or cancel workflows in another namespace.<br>This issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2."}], "value": "When system.enableCrossNamespaceCommands is enabled (on by default), the Temporal server permits certain workflow task commands (e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution) to target a different namespace than the namespace authorized at the gRPC boundary. The frontend authorizes RespondWorkflowTaskCompleted based on the outer request namespace, but the history service later resolves and executes the command using the namespace embedded in command attributes without authorizing the caller for that target namespace. This can allow a worker authorized for one namespace to create, signal, or cancel workflows in another namespace.\nThis issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2."}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.3, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "61241ed8-fa44-4f23-92db-b8c443751968", "shortName": "Temporal", "dateUpdated": "2025-12-30T20:16:20.154Z"}, "references": [{"url": "https://github.com/temporalio/temporal/releases/tag/v1.27.4"}, {"url": "https://github.com/temporalio/temporal/releases/tag/v1.28.2"}, {"url": "https://github.com/temporalio/temporal/releases/tag/v1.29.2"}], "source": {"discovery": "INTERNAL"}, "title": "Cross Namespace Commands Authorization Bypass", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Set <code>system.enableCrossNamespaceCommands</code> to false, unless cross-namespace workflow-task commands are explicitly required."}], "value": "Set system.enableCrossNamespaceCommands to false, unless cross-namespace workflow-task commands are explicitly required."}], "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "When system.enableCrossNamespaceCommands is enabled (on by default), the Temporal server permits certain workflow task commands (e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution) to target a different namespace than the namespace authorized at the gRPC boundary. The frontend authorizes RespondWorkflowTaskCompleted based on the outer request namespace, but the history service later resolves and executes the command using the namespace embedded in command attributes without authorizing the caller for that target namespace. This can allow a worker authorized for one namespace to create, signal, or cancel workflows in another namespace.\nThis issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2."}], "id": "CVE-2025-14987", "lastModified": "2025-12-30T21:15:43.343", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@temporal.io", "type": "Secondary"}]}, "published": "2025-12-30T21:15:43.343", "references": [{"source": "security@temporal.io", "url": "https://github.com/temporalio/temporal/releases/tag/v1.27.4"}, {"source": "security@temporal.io", "url": "https://github.com/temporalio/temporal/releases/tag/v1.28.2"}, {"source": "security@temporal.io", "url": "https://github.com/temporalio/temporal/releases/tag/v1.29.2"}], "sourceIdentifier": "security@temporal.io", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security@temporal.io", "type": "Secondary"}]}

{}

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