{"id":"CVE-2026-42603","state":"PUBLISHED","title":"OWASP BLT: pre-commit-fix.yaml executes untrusted fork code via pull_request_target","description":"OWASP BLT is a QA testing and vulnerability disclosure platform that encompasses websites, apps, git repositories, and more. Prior to 2.1.2, .github/workflows/pre-commit-fix.yaml uses pull_request_target (privileged trigger) but checks out and executes code directly from the attacker's fork, enabling RCE with write permissions. This vulnerability is fixed in 2.1.2.","publishedAt":"2026-05-11T16:11:55.297Z","updatedAt":"2026-05-11T17:27:55.699Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OWASP-BLT BLT"],"affected":[{"vendor":"OWASP-BLT","product":"BLT","versions":[{"version":"< 2.1.2","status":"affected"}]}],"references":["https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh"],"weaknesses":["CWE-94","CWE-95"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42603.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42603","state":"PUBLISHED","datePublished":"2026-05-11T16:11:55.297Z","dateUpdated":"2026-05-11T17:27:55.699Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-29T00:31:15.725Z"},"containers":{"cna":{"title":"OWASP BLT: pre-commit-fix.yaml executes untrusted fork code via pull_request_target","descriptions":[{"lang":"en","value":"OWASP BLT is a QA testing and vulnerability disclosure platform that encompasses websites, apps, git repositories, and more. Prior to 2.1.2, .github/workflows/pre-commit-fix.yaml uses pull_request_target (privileged trigger) but checks out and executes code directly from the attacker's fork, enabling RCE with write permissions. This vulnerability is fixed in 2.1.2."}],"affected":[{"vendor":"OWASP-BLT","product":"BLT","versions":[{"version":"< 2.1.2","status":"affected"}]}],"references":[{"url":"https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh","name":"https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-95","lang":"en","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-11T16:11:55.297Z"},"source":{"advisory":"GHSA-cgvj-qg2h-cqfh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-11T17:27:52.116751Z","id":"CVE-2026-42603","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-11T17:27:55.699Z"}}]}}}