{"id":"CVE-2026-55448","sourceIdentifier":"security-advisories@github.com","published":"2026-06-26T18:17:01.323","lastModified":"2026-06-27T04:17:51.803","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"mise manages dev tools like node, python, cmake, and terraform. From 2026.3.15 until 2026.6.4, mise loads github.credential_command from local project config before any trust decision, then executes that value with sh -c when resolving a GitHub token. An attacker who can place a .mise.toml in a repository can execute arbitrary shell commands when the victim runs a GitHub-related mise command and no higher-priority GitHub token environment variable is set. This vulnerability is fixed in 2026.6.4."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"jdx","product":"mise","versions":[{"version":"< 2026.6.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.0,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-27T02:44:12.911314Z","id":"CVE-2026-55448","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-78"}]}],"references":[{"url":"https://github.com/jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph","source":"security-advisories@github.com"},{"url":"https://github.com/jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}