{"id":"CVE-2026-67438","state":"PUBLISHED","title":"OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check","description":"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.","publishedAt":"2026-07-29T20:53:09.524Z","updatedAt":"2026-07-30T15:18:25.719Z","severity":{"score":6.6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OliveTin OliveTin"],"affected":[{"vendor":"OliveTin","product":"OliveTin","versions":[{"version":">= 3000.2.0, < 3000.17.0","status":"affected"}]}],"references":["https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65","https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232","https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/67xxx/CVE-2026-67438.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67438","state":"PUBLISHED","datePublished":"2026-07-29T20:53:09.524Z","dateUpdated":"2026-07-30T15:18:25.719Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-29T15:07:24.992Z"},"containers":{"cna":{"title":"OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"OliveTin","product":"OliveTin","versions":[{"version":">= 3000.2.0, < 3000.17.0","status":"affected"}]}],"references":[{"url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65","name":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232","name":"https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232","tags":["x_refsource_MISC"]},{"url":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0","name":"https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.6,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"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":"2026-07-29T20:53:09.524Z"},"source":{"advisory":"GHSA-xc5w-4v5w-7x65","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-30T14:19:29.634217Z","id":"CVE-2026-67438","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":"2026-07-30T15:18:25.719Z"}}]}}}