{"id":"CVE-2026-34243","state":"PUBLISHED","title":"wenxian: Command Injection in GitHub Actions Workflow via `issue_comment.body`","description":"wenxian is a tool to generate BIBTEX files from given identifiers (DOI, PMID, arXiv ID, or paper title). In versions 0.3.1 and prior, a GitHub Actions workflow uses untrusted user input from issue_comment.body directly inside a shell command, allowing potential command injection and arbitrary code execution on the runner. At time of publication, there are no publicly available patches.","publishedAt":"2026-03-31T15:49:27.333Z","updatedAt":"2026-04-02T15:21:36.168Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["njzjz wenxian"],"affected":[{"vendor":"njzjz","product":"wenxian","versions":[{"version":"<= 0.3.1","status":"affected"}]}],"references":["https://github.com/njzjz/wenxian/security/advisories/GHSA-r4fj-r33x-8v88"],"weaknesses":["CWE-77","CWE-78"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/34xxx/CVE-2026-34243.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-34243","state":"PUBLISHED","datePublished":"2026-03-31T15:49:27.333Z","dateUpdated":"2026-04-02T15:21:36.168Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-26T16:22:29.034Z"},"containers":{"cna":{"title":"wenxian: Command Injection in GitHub Actions Workflow via `issue_comment.body`","descriptions":[{"lang":"en","value":"wenxian is a tool to generate BIBTEX files from given identifiers (DOI, PMID, arXiv ID, or paper title). In versions 0.3.1 and prior, a GitHub Actions workflow uses untrusted user input from issue_comment.body directly inside a shell command, allowing potential command injection and arbitrary code execution on the runner. At time of publication, there are no publicly available patches."}],"affected":[{"vendor":"njzjz","product":"wenxian","versions":[{"version":"<= 0.3.1","status":"affected"}]}],"references":[{"url":"https://github.com/njzjz/wenxian/security/advisories/GHSA-r4fj-r33x-8v88","name":"https://github.com/njzjz/wenxian/security/advisories/GHSA-r4fj-r33x-8v88","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","lang":"en","description":"CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-31T15:49:27.333Z"},"source":{"advisory":"GHSA-r4fj-r33x-8v88","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-02T15:21:25.262697Z","id":"CVE-2026-34243","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":"2026-04-02T15:21:36.168Z"}}]}}}