{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50570", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-04T21:34:34.427Z", "datePublished": "2026-06-10T17:34:14.910Z", "dateUpdated": "2026-06-10T18:37:36.661Z"}, "containers": {"cna": {"title": "Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption", "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "lang": "en", "description": "CWE-269: Improper Privilege Management", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-732", "lang": "en", "description": "CWE-732: Incorrect Permission Assignment for Critical Resource", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/fission/fission/security/advisories/GHSA-qf5v-m7p4-95rp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/fission/fission/security/advisories/GHSA-qf5v-m7p4-95rp"}, {"name": "https://github.com/fission/fission/pull/3465", "tags": ["x_refsource_MISC"], "url": "https://github.com/fission/fission/pull/3465"}, {"name": "https://github.com/fission/fission/releases/tag/v1.25.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/fission/fission/releases/tag/v1.25.0"}], "affected": [{"vendor": "fission", "product": "fission", "versions": [{"version": "< 1.25.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-10T17:34:14.910Z"}, "descriptions": [{"lang": "en", "value": "Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Fission added PodSpec safety validation for tenant-facing Environment and Function CRDs (ValidatePodSpecSafety / ValidateContainerSafety admission webhook + sanitizeContainerSecurityContext executor merge layer), but the capability check was implemented as a fixed denylist of six Linux capabilities (SYS_ADMIN, NET_ADMIN, SYS_PTRACE, SYS_MODULE, DAC_READ_SEARCH, DAC_OVERRIDE). The denylist omitted CAP_SYS_TIME, among others. As a result, a tenant who could create a Function or Environment CRD could request securityContext.capabilities.add: [\"SYS_TIME\"], pass Fission's admission validation and merge-layer sanitization, and run attacker-controlled code with CAP_SYS_TIME in the resulting function or runtime container. This issue has been patched in version 1.25.0."}], "source": {"advisory": "GHSA-qf5v-m7p4-95rp", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-10T18:31:08.293816Z", "id": "CVE-2026-50570", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-10T18:37:36.661Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Fission added PodSpec safety validation for tenant-facing Environment and Function CRDs (ValidatePodSpecSafety / ValidateContainerSafety admission webhook + sanitizeContainerSecurityContext executor merge layer), but the capability check was implemented as a fixed denylist of six Linux capabilities (SYS_ADMIN, NET_ADMIN, SYS_PTRACE, SYS_MODULE, DAC_READ_SEARCH, DAC_OVERRIDE). The denylist omitted CAP_SYS_TIME, among others. As a result, a tenant who could create a Function or Environment CRD could request securityContext.capabilities.add: [\"SYS_TIME\"], pass Fission's admission validation and merge-layer sanitization, and run attacker-controlled code with CAP_SYS_TIME in the resulting function or runtime container. This issue has been patched in version 1.25.0."}], "id": "CVE-2026-50570", "lastModified": "2026-06-10T19:37:41.437", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-10T18:17:13.623", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/fission/fission/pull/3465"}, {"source": "security-advisories@github.com", "url": "https://github.com/fission/fission/releases/tag/v1.25.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/fission/fission/security/advisories/GHSA-qf5v-m7p4-95rp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}, {"lang": "en", "value": "CWE-732"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-06-10T19:45:39.062187+00:00", "updated": "2026-06-10T19:45:39.062199+00:00", "vendors": []}