{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-73294", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-11T19:42:11.450Z", "datePublished": "2026-08-12T15:55:00.560Z", "dateUpdated": "2026-08-12T16:03:38.426Z" }, "containers": { "cna": { "title": "Semaphore U: OS Command Injection", "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" } ] }, { "descriptions": [ { "cweId": "CWE-88", "lang": "en", "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p" }, { "name": "https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6" }, { "name": "https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf" }, { "name": "https://github.com/semaphoreui/semaphore/tree/v2.18.17", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/semaphoreui/semaphore/tree/v2.18.17" }, { "name": "https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2" } ], "affected": [ { "vendor": "semaphoreui", "product": "semaphore", "versions": [ { "version": "< 2.18.17", "status": "affected" }, { "version": ">= 2.19.0-alpha3, < 2.19.5-beta2", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-12T15:55:00.560Z" }, "descriptions": [ { "lang": "en", "value": "Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.17 and 2.19.5-beta2, repository git_url handling passes an attacker-controlled --upload-pack option to CmdGitClient.GetLastRemoteCommitHash through POST /api/project/{id}/repositories and scheduled commit-hash polling, allowing a project Manager or Owner to execute arbitrary OS commands in the Semaphore server process. This issue is fixed in versions 2.18.17 and 2.19.5-beta2." } ], "source": { "advisory": "GHSA-xp7j-h7jc-4w8p", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-12T16:03:17.361594Z", "id": "CVE-2026-73294", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T16:03:38.426Z" } } ] } }