{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26068","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-10T18:01:31.900Z","datePublished":"2026-02-12T22:01:23.212Z","dateUpdated":"2026-02-13T17:17:57.660Z"},"containers":{"cna":{"title":"emp3r0r Agent-Controlled Metadata to Operator RCE (tmux Command Injection)","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"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"}}],"references":[{"name":"https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-h5p4-4xp4-vjpp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-h5p4-4xp4-vjpp"},{"name":"https://github.com/jm33-m0/emp3r0r/commit/0cd64e4a26e7839a9a54bca3d756a665fcb7fda0","tags":["x_refsource_MISC"],"url":"https://github.com/jm33-m0/emp3r0r/commit/0cd64e4a26e7839a9a54bca3d756a665fcb7fda0"},{"name":"https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.1","tags":["x_refsource_MISC"],"url":"https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.1"}],"affected":[{"vendor":"jm33-m0","product":"emp3r0r","versions":[{"version":"< 3.21.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-02-12T22:01:23.212Z"},"descriptions":[{"lang":"en","value":"emp3r0r is a stealth-focused C2 designed by Linux users for Linux environments. Prior to 3.21.1, untrusted agent metadata (Transport, Hostname) is accepted during check-in and later interpolated into tmux shell command strings executed via /bin/sh -c. This enables command injection and remote code execution on the operator host. This vulnerability is fixed in 3.21.1."}],"source":{"advisory":"GHSA-h5p4-4xp4-vjpp","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-13T17:17:44.435176Z","id":"CVE-2026-26068","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":"2026-02-13T17:17:57.660Z"}}]}}