{"id":"CVE-2026-86463","state":"PUBLISHED","title":"Apache CXF: FIQL Query Parser Denial of Service","description":"Apache CXF's FIQL query parser has a vulnerability in how it searches for operators in query expressions. The search pattern can get stuck trying many combinations when it encounters a long string without an operator, causing the parser to consume excessive CPU time. An attacker can send a crafted query to make the server use up CPU resources, potentially slowing down or stopping other requests. The fix was to limit FIQL expressions to 4 KiB by default, preventing attackers from sending extremely long inputs while still allowing normal queries.\n\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.","publishedAt":"2026-10-09T10:18:42.008Z","updatedAt":"2026-10-15T16:26:53.196Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache CXF"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache CXF","packageName":"org.apache.cxf:cxf-rt-rs-extension-search","packageURL":"pkg:maven/org.apache.cxf/cxf-rt-rs-extension-search","defaultStatus":"unaffected","versions":[{"version":"4.2.0","status":"affected","lessThan":"4.2.4","versionType":"semver"},{"version":"4.0.0","status":"affected","lessThan":"4.1.9","versionType":"semver"},{"version":"0","status":"affected","lessThan":"3.6.13","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://lists.apache.org/thread.html/mv5qfmd27gkbvt3k6by9db5bolrsbgy1","http://www.openwall.com/lists/oss-security/2026/10/09/8"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86463.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86463","state":"PUBLISHED","datePublished":"2026-10-09T10:18:42.008Z","dateUpdated":"2026-10-15T16:26:53.196Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-09-07T14:23:09.392Z"},"containers":{"cna":{"title":"Apache CXF: FIQL Query Parser Denial of Service","descriptions":[{"lang":"en","value":"Apache CXF's FIQL query parser has a vulnerability in how it searches for operators in query expressions. 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The fix was to limit FIQL expressions to 4 KiB by default, preventing attackers from sending extremely long inputs while still allowing normal queries.\n\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache CXF","packageName":"org.apache.cxf:cxf-rt-rs-extension-search","packageURL":"pkg:maven/org.apache.cxf/cxf-rt-rs-extension-search","defaultStatus":"unaffected","versions":[{"version":"4.2.0","status":"affected","lessThan":"4.2.4","versionType":"semver"},{"version":"4.0.0","status":"affected","lessThan":"4.1.9","versionType":"semver"},{"version":"0","status":"affected","lessThan":"3.6.13","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://lists.apache.org/thread.html/mv5qfmd27gkbvt3k6by9db5bolrsbgy1","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"low"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-09T10:18:42.008Z"},"source":{"discovery":"UNKNOWN"},"credits":[{"lang":"en","value":"Mike Read (github.com/Michael-JRead)","type":"finder"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/09/8"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-09T11:08:01.524Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T16:26:44.797809Z","id":"CVE-2026-86463","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-15T16:26:53.196Z"}}]}}}