{"api_version":"1","generated_at":"2026-07-16T07:42:06+00:00","cve":"CVE-2026-59083","urls":{"html":"https://cve.report/CVE-2026-59083","api":"https://cve.report/api/cve/CVE-2026-59083.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-59083","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-59083"},"summary":{"title":"Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass","description":"Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.\n\nUsers are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.","state":"PUBLISHED","assigner":"apache","published_at":"2026-07-14 09:16:41","updated_at":"2026-07-14 16:57:31"},"problem_types":["CWE-177","CWE-177 CWE-177 Improper Handling of URL Encoding (Hex Encoding)"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}}],"references":[{"url":"https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq","name":"https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq","refsource":"security@apache.org","tags":["Mitigation","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://www.openwall.com/lists/oss-security/2026/07/14/7","name":"http://www.openwall.com/lists/oss-security/2026/07/14/7","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59083","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59083","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 11.0.0-M1 11.0.23 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 10.1.0-M1 10.1.56 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 9.0.0.M1 9.0.119 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 8.5.0 8.5.100 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"unaffected 8.0.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"59083","vulnerable":"1","versionEndIncluding":"10.1.56","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"59083","vulnerable":"1","versionEndIncluding":"11.0.23","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"59083","vulnerable":"1","versionEndIncluding":"8.0.0","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"59083","vulnerable":"1","versionEndIncluding":"8.5.100","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"59083","vulnerable":"1","versionEndIncluding":"9.0.119","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apache","cpe5":"tomcat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"59083","cve":"CVE-2026-59083","epss":"0.001560000","percentile":"0.051620000","score_date":"2026-07-14","updated_at":"2026-07-15 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-07-14T10:33:09.125Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/07/14/7"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-59083","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-07-14T12:19:49.962916Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-14T12:19:54.438Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Apache Tomcat","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"11.0.23","status":"affected","version":"11.0.0-M1","versionType":"semver"},{"lessThanOrEqual":"10.1.56","status":"affected","version":"10.1.0-M1","versionType":"semver"},{"lessThanOrEqual":"9.0.119","status":"affected","version":"9.0.0.M1","versionType":"semver"},{"lessThanOrEqual":"8.5.100","status":"affected","version":"8.5.0","versionType":"semver"},{"lessThan":"8.0.0","status":"unaffected","version":"0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations.</p><p>This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100.&nbsp;Other versions that have reached end of support may also be affected.</p><p>Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.</p>"}],"value":"Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.\n\nUsers are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue."}],"metrics":[{"other":{"content":{"text":"low"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-177","description":"CWE-177 Improper Handling of URL Encoding (Hex Encoding)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-14T08:13:04.861Z","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/3g63zos2gkjo5vgnrk8kxmosv47w6wbq"}],"source":{"discovery":"INTERNAL"},"title":"Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass","x_generator":{"engine":"Vulnogram 0.2.0"}}},"cveMetadata":{"assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","assignerShortName":"apache","cveId":"CVE-2026-59083","datePublished":"2026-07-14T08:13:04.861Z","dateReserved":"2026-07-02T10:39:12.023Z","dateUpdated":"2026-07-14T12:19:54.438Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-14 09:16:41","lastModifiedDate":"2026-07-14 16:57:31","problem_types":["CWE-177","CWE-177 CWE-177 Improper Handling of URL Encoding (Hex Encoding)"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-14T12:19:49.962916Z","id":"CVE-2026-59083","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","versionEndIncluding":"8.0.0","matchCriteriaId":"6626CE25-E8F0-4F67-ACEB-363F6D2BDEEC"},{"vulnerable":true,"criteria":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.5.0","versionEndIncluding":"8.5.100","matchCriteriaId":"FF43D0D7-FBF3-4D7A-84C4-47B65A75A524"},{"vulnerable":true,"criteria":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndIncluding":"9.0.119","matchCriteriaId":"C8665E8D-D2A4-46FF-A126-75EDE95FCA35"},{"vulnerable":true,"criteria":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","versionStartIncluding":"10.1.0","versionEndIncluding":"10.1.56","matchCriteriaId":"1B3DEC2A-7E4A-4851-8466-AFCC4B249748"},{"vulnerable":true,"criteria":"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*","versionStartIncluding":"11.0.0","versionEndIncluding":"11.0.23","matchCriteriaId":"30943912-13A4-40D8-A9E3-9DE3C0008258"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"59083","Ordinal":"1","Title":"Apache Tomcat: Incorrect URL decoding in RewriteValve may allow ","CVE":"CVE-2026-59083","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"59083","Ordinal":"1","NoteData":"Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.\n\nUsers are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue.","Type":"Description","Title":"Apache Tomcat: Incorrect URL decoding in RewriteValve may allow "}]}}}