{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52831","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T18:11:06.662Z","datePublished":"2026-09-02T16:40:28.765Z","dateUpdated":"2026-09-03T14:31:56.446Z"},"containers":{"cna":{"title":"Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE","problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p"},{"name":"https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede","tags":["x_refsource_MISC"],"url":"https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede"},{"name":"https://github.com/nuclio/nuclio/releases/tag/1.16.4","tags":["x_refsource_MISC"],"url":"https://github.com/nuclio/nuclio/releases/tag/1.16.4"}],"affected":[{"vendor":"nuclio","product":"nuclio","versions":[{"version":"< 1.16.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-02T16:40:28.765Z"},"descriptions":[{"lang":"en","value":"Nuclio is a \"Serverless\" framework for Real-Time Events and Data Processing. Prior to version 1.16.4, the Nuclio controller builds a curl invocation string for each cron trigger and stores it as the args of a Kubernetes CronJob container (/bin/sh, -c, <command>). Two fields in the trigger specification flow into this string without adequate sanitization: event.headers keys and event.body. This issue has been patched in version 1.16.4."}],"source":{"advisory":"GHSA-v5px-423j-pf7p","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-03T14:08:01.445028Z","id":"CVE-2026-52831","options":[{"Exploitation":"none"},{"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":"2026-09-03T14:31:56.446Z"}}]}}