{"id":"CVE-2026-29042","state":"PUBLISHED","title":"Nuclio Shell Runtime Command Injection Leading to Privilege Escalation","description":"Nuclio is a \"Serverless\" framework for Real-Time Events and Data Processing. Prior to version 1.15.20, the Nuclio Shell Runtime component contains a command injection vulnerability in how it processes user-supplied arguments. When a function is invoked via HTTP, the runtime reads the X-Nuclio-Arguments header and directly incorporates its value into shell commands without any validation or sanitization. This issue has been patched in version 1.15.20.","publishedAt":"2026-03-06T06:57:11.332Z","updatedAt":"2026-03-09T19:57:06.516Z","severity":{"score":8.9,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["nuclio nuclio"],"affected":[{"vendor":"nuclio","product":"nuclio","versions":[{"version":"< 1.15.20","status":"affected"}]}],"references":["https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27","https://github.com/nuclio/nuclio/pull/4030","https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a","https://github.com/nuclio/nuclio/releases/tag/1.15.20"],"weaknesses":["CWE-75"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/29xxx/CVE-2026-29042.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-29042","state":"PUBLISHED","datePublished":"2026-03-06T06:57:11.332Z","dateUpdated":"2026-03-09T19:57:06.516Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-03T17:50:11.242Z"},"containers":{"cna":{"title":"Nuclio Shell Runtime Command Injection Leading to Privilege Escalation","descriptions":[{"lang":"en","value":"Nuclio is a \"Serverless\" framework for Real-Time Events and Data Processing. Prior to version 1.15.20, the Nuclio Shell Runtime component contains a command injection vulnerability in how it processes user-supplied arguments. When a function is invoked via HTTP, the runtime reads the X-Nuclio-Arguments header and directly incorporates its value into shell commands without any validation or sanitization. This issue has been patched in version 1.15.20."}],"affected":[{"vendor":"nuclio","product":"nuclio","versions":[{"version":"< 1.15.20","status":"affected"}]}],"references":[{"url":"https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27","name":"https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nuclio/nuclio/pull/4030","name":"https://github.com/nuclio/nuclio/pull/4030","tags":["x_refsource_MISC"]},{"url":"https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a","name":"https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a","tags":["x_refsource_MISC"]},{"url":"https://github.com/nuclio/nuclio/releases/tag/1.15.20","name":"https://github.com/nuclio/nuclio/releases/tag/1.15.20","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.9,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-75","lang":"en","description":"CWE-75: Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-06T06:57:11.332Z"},"source":{"advisory":"GHSA-95fj-3w7g-4r27","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T19:56:55.354293Z","id":"CVE-2026-29042","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T19:57:06.516Z"}}]}}}