{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61813","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T20:17:57.991Z","datePublished":"2026-11-05T15:48:15.062Z","dateUpdated":"2026-11-05T15:48:15.062Z"},"containers":{"cna":{"title":"ModSecurity: Incorrect libcurl TLS hostname verification setting in HttpsClient::download","problemTypes":[{"descriptions":[{"cweId":"CWE-295","lang":"en","description":"CWE-295: Improper Certificate Validation","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-2vqc-36qp-ccmw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-2vqc-36qp-ccmw"},{"name":"https://github.com/owasp-modsecurity/ModSecurity/commit/cce204806430e4848327aadeb9113e654631a0c1","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/commit/cce204806430e4848327aadeb9113e654631a0c1"},{"name":"https://github.com/owasp-modsecurity/ModSecurity/commit/edca70d853bfb725325137fa40d178beebc324fc","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/commit/edca70d853bfb725325137fa40d178beebc324fc"},{"name":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v2.9.15","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v2.9.15"},{"name":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.17","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.17"}],"affected":[{"vendor":"owasp-modsecurity","product":"ModSecurity","versions":[{"version":"< 2.9.15","status":"affected"},{"version":">= 3.0.0, < 3.0.17","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-05T15:48:15.062Z"},"descriptions":[{"lang":"en","value":"ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 2.9.15 and 3.0.17, the HttpsClient::download function in src/utils/https_client.cc sets libcurl CURLOPT_SSL_VERIFYHOST to 1 instead of the strict value 2L. Under adversary-in-the-middle and TLS interception conditions, this non-strict setting may weaken TLS peer identity validation and increase the risk of accepting a certificate for an unintended host. End-to-end exploitation is non-trivial in typical environments. This issue is fixed in versions 2.9.15 and 3.0.17."}],"source":{"advisory":"GHSA-2vqc-36qp-ccmw","discovery":"UNKNOWN"}}}}