CVE-2026-50567

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50567", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-04T21:34:34.426Z", "datePublished": "2026-06-10T17:30:45.695Z", "dateUpdated": "2026-06-10T19:30:59.121Z"}, "containers": {"cna": {"title": "Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "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:N", "version": "3.1"}}], "references": [{"name": "https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff"}, {"name": "https://github.com/fission/fission/pull/3444", "tags": ["x_refsource_MISC"], "url": "https://github.com/fission/fission/pull/3444"}, {"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": "2026-06-10T17:30:45.695Z"}, "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, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control a Package.Spec.Source.URL or Deployment.URL archive could induce the fetcher (running as the per-environment pod's fission-fetcher sidecar) to write files anywhere that process could reach: into other tenants' /packages/<ns>/ directories, into mounted secret/config volumes, or into the fetcher's own binary. This issue has been patched in version 1.25.0."}], "source": {"advisory": "GHSA-q6vm-xqc9-v3ff", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-10T19:14:04.389836Z", "id": "CVE-2026-50567", "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": "2026-06-10T19:30:59.121Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-50567", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-10T19:14:04.389836Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-10T19:14:12.436Z"}}], "cna": {"title": "Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory", "source": {"advisory": "GHSA-q6vm-xqc9-v3ff", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "fission", "product": "fission", "versions": [{"status": "affected", "version": "< 1.25.0"}]}], "references": [{"url": "https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff", "name": "https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/fission/fission/pull/3444", "name": "https://github.com/fission/fission/pull/3444", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/fission/fission/releases/tag/v1.25.0", "name": "https://github.com/fission/fission/releases/tag/v1.25.0", "tags": ["x_refsource_MISC"]}], "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, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control a Package.Spec.Source.URL or Deployment.URL archive could induce the fetcher (running as the per-environment pod's fission-fetcher sidecar) to write files anywhere that process could reach: into other tenants' /packages/<ns>/ directories, into mounted secret/config volumes, or into the fetcher's own binary. This issue has been patched in version 1.25.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-10T17:30:45.695Z"}}}, "cveMetadata": {"cveId": "CVE-2026-50567", "state": "PUBLISHED", "dateUpdated": "2026-06-10T19:30:59.121Z", "dateReserved": "2026-06-04T21:34:34.426Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-10T17:30:45.695Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "fission", "vendor": "fission", "versions": [{"status": "affected", "version": "< 1.25.0"}]}], "source": "security-advisories@github.com"}], "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, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control a Package.Spec.Source.URL or Deployment.URL archive could induce the fetcher (running as the per-environment pod's fission-fetcher sidecar) to write files anywhere that process could reach: into other tenants' /packages/<ns>/ directories, into mounted secret/config volumes, or into the fetcher's own binary. This issue has been patched in version 1.25.0."}], "id": "CVE-2026-50567", "lastModified": "2026-06-17T10:57:43.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "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:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-50567", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-10T19:14:04.389836Z", "version": "2.0.3"}}]}, "published": "2026-06-10T18:17:13.197", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/fission/fission/pull/3444"}, {"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-q6vm-xqc9-v3ff"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.25.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "fission", "source": "cna", "vendor": "fission"}, "product": "fission", "vendor": "fission"}], "created": "2026-06-10T19:45:39.063103+00:00", "updated": "2026-06-11T10:41:13.265532+00:00", "vendors": ["fission", "fission$PRODUCT$fission"]}