{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-13074","assignerOrgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","state":"PUBLISHED","assignerShortName":"mongodb","dateReserved":"2026-06-23T18:00:19.050Z","datePublished":"2026-07-22T19:13:33.148Z","dateUpdated":"2026-07-23T14:20:01.397Z"},"containers":{"cna":{"providerMetadata":{"orgId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","shortName":"mongodb","dateUpdated":"2026-07-22T19:13:33.148Z"},"title":"Awaitable Hello Command in Exhaust Mode Unthrottled Response Loop Leading to Denial of Service","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"affected":[{"vendor":"MongoDB","product":"MongoDB Server","versions":[{"status":"affected","version":"7.0","lessThan":"7.0.39","versionType":"semver"},{"status":"affected","version":"8.0","lessThan":"8.0.28","versionType":"semver"},{"status":"affected","version":"8.2.0","lessThan":"8.2.12","versionType":"semver"},{"status":"affected","version":"8.3.0","lessThan":"8.3.7","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.","supportingMedia":[{"type":"text/html","base64":false,"value":"An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability."}]}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-128517"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitCodeMaturity":"NOT_DEFINED","remediationLevel":"NOT_DEFINED","reportConfidence":"NOT_DEFINED"}}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-23T14:19:53.698681Z","id":"CVE-2026-13074","options":[{"Exploitation":"none"},{"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":"2026-07-23T14:20:01.397Z"}}]}}