{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61554","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T16:48:39.923Z","datePublished":"2026-09-15T20:48:05.156Z","dateUpdated":"2026-09-16T17:59:54.763Z"},"containers":{"cna":{"title":"emp3r0r has an unauthenticated HTTP Polling DoS","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-4595-rvpx-4q34","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-4595-rvpx-4q34"},{"name":"https://github.com/jm33-m0/emp3r0r/releases/tag/v4.2.5","tags":["x_refsource_MISC"],"url":"https://github.com/jm33-m0/emp3r0r/releases/tag/v4.2.5"}],"affected":[{"vendor":"jm33-m0","product":"emp3r0r","versions":[{"version":"< 4.2.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-15T20:48:05.156Z"},"descriptions":[{"lang":"en","value":"emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 4.2.5, the `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing. Version 4.2.5 patches the issue."}],"source":{"advisory":"GHSA-4595-rvpx-4q34","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-4595-rvpx-4q34","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T17:59:27.422568Z","id":"CVE-2026-61554","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-16T17:59:54.763Z"}}]}}