{"id":"CVE-2026-49821","state":"PUBLISHED","title":"Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration","description":"Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. This issue has been patched in version 1.24.0.","publishedAt":"2026-06-10T17:21:48.470Z","updatedAt":"2026-06-10T18:35:23.917Z","severity":{"score":7.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["fission fission"],"affected":[{"vendor":"fission","product":"fission","versions":[{"version":"< 1.24.0","status":"affected"}]}],"references":["https://github.com/fission/fission/security/advisories/GHSA-vjhc-cf4p-72q4","https://github.com/fission/fission/pull/3379","https://github.com/fission/fission/releases/tag/v1.24.0"],"weaknesses":["CWE-441","CWE-862"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49821.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49821","state":"PUBLISHED","datePublished":"2026-06-10T17:21:48.470Z","dateUpdated":"2026-06-10T18:35:23.917Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-01T18:50:36.055Z"},"containers":{"cna":{"title":"Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration","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 1.24.0, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. This issue has been patched in version 1.24.0."}],"affected":[{"vendor":"fission","product":"fission","versions":[{"version":"< 1.24.0","status":"affected"}]}],"references":[{"url":"https://github.com/fission/fission/security/advisories/GHSA-vjhc-cf4p-72q4","name":"https://github.com/fission/fission/security/advisories/GHSA-vjhc-cf4p-72q4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/fission/fission/pull/3379","name":"https://github.com/fission/fission/pull/3379","tags":["x_refsource_MISC"]},{"url":"https://github.com/fission/fission/releases/tag/v1.24.0","name":"https://github.com/fission/fission/releases/tag/v1.24.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-441","lang":"en","description":"CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-10T17:21:48.470Z"},"source":{"advisory":"GHSA-vjhc-cf4p-72q4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T18:35:17.070325Z","id":"CVE-2026-49821","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-10T18:35:23.917Z"}}]}}}