{"id":"CVE-2026-67438","aliases":["GHSA-xc5w-4v5w-7x65","GO-2026-6145"],"url":"https://o3.security/vulnerability/CVE-2026-67438","summary":"OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check","details":"OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.","published":"2026-07-29T20:53:09.524Z","modified":"2026-09-09T18:26:44.013183490Z","cvss":{"score":6.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00997,"percentile":0.60745,"asOf":"2026-09-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/OliveTin/OliveTin","fixedVersion":"0.0.0-20260708084548-995ff79736f2"}],"fix":{"url":"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232","label":"OliveTin/OliveTin@995ff79"},"references":[{"type":"WEB","url":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67438.json"},{"type":"ADVISORY","url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67438"},{"type":"FIX","url":"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T18:26:44.013183490Z"}}