{"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": "2026-09-02T16:40:28.765Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "nuclio", "vendor": "nuclio", "versions": [{"status": "affected", "version": "< 1.16.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-52831", "lastModified": "2026-09-02T17:17:45.347", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "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"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-02T17:17:45.347", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuclio/nuclio/releases/tag/1.16.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.16.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "nuclio", "source": "cna", "vendor": "nuclio"}, "product": "nuclio", "vendor": "nuclio"}], "created": "2026-09-03T11:00:03.335136+00:00", "updated": "2026-09-03T11:00:03.820858+00:00", "vendors": ["nuclio", "nuclio$PRODUCT$nuclio"]}