{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9137","assignerOrgId":"5a6e4751-2f3f-4070-9419-94fb35b644e8","state":"PUBLISHED","assignerShortName":"CIRCL","dateReserved":"2026-05-20T18:42:18.665Z","datePublished":"2026-05-20T18:43:30.895Z","dateUpdated":"2026-05-29T06:57:50.739Z"},"containers":{"cna":{"providerMetadata":{"orgId":"5a6e4751-2f3f-4070-9419-94fb35b644e8","shortName":"CIRCL","dateUpdated":"2026-05-29T06:57:50.739Z"},"title":"CSP Report Endpoint Log Flooding in MISP via Incorrect Size Limit","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-572","descriptions":[{"lang":"en","value":"CAPEC-572 Artificially Inflate File Sizes"}]}],"affected":[{"vendor":"misp","product":"misp","versions":[{"status":"affected","version":"2.5.0","lessThanOrEqual":"2.5.37","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The CSP report endpoint in MISP intended to limit logged CSP reports to 1 KB but incorrectly allowed reports up to 1 MB before truncation. On deployments where the endpoint is reachable by untrusted clients, this could allow attackers to generate excessive log volume and contribute to resource exhaustion or log flooding.","supportingMedia":[{"type":"text/html","base64":false,"value":"The CSP report endpoint in MISP intended to limit logged CSP reports to 1 KB but incorrectly allowed reports up to 1 MB before truncation. On deployments where the endpoint is reachable by untrusted clients, this could allow attackers to generate excessive log volume and contribute to resource exhaustion or log flooding."}]}],"references":[{"url":"https://github.com/MISP/MISP/commit/02932cccab230b295afcaf5aa05e363d30db0ec9","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","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":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"Seth Kraft","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-20T19:26:27.850035Z","id":"CVE-2026-9137","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-05-20T19:26:46.826Z"}}]}}