{"api_version":"1","generated_at":"2026-04-11T00:03:06+00:00","cve":"CVE-2026-25854","urls":{"html":"https://cve.report/CVE-2026-25854","api":"https://cve.report/api/cve/CVE-2026-25854.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-25854","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-25854"},"summary":{"title":"Apache Tomcat: Occasionally open redirect","description":"Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100.\nOther, unsupported versions may also be affected\n\nUsers are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.","state":"PUBLISHED","assigner":"apache","published_at":"2026-04-09 20:16:24","updated_at":"2026-04-10 19:16:21"},"problem_types":["CWE-601","CWE-601 CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/04/09/21","name":"http://www.openwall.com/lists/oss-security/2026/04/09/21","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0","name":"https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0","refsource":"security@apache.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-25854","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25854","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 11.0.18 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 10.1.0-M1 10.1.52 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 9.0.0.M23 9.0.115 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"affected 8.5.30 8.5.100 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Tomcat","version":"unaffected 7.0.109 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"gregk4sec (https://github.com/gregk4sec)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"25854","cve":"CVE-2026-25854","epss":"0.000050000","percentile":"0.002770000","score_date":"2026-04-10","updated_at":"2026-04-11 00:00:33"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-04-09T23:15:47.041Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/04/09/21"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-25854","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-04-10T18:21:57.176392Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-04-10T18:22:34.359Z","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":"11.0.18","status":"affected","version":"11.0.0-M1","versionType":"semver"},{"lessThanOrEqual":"10.1.52","status":"affected","version":"10.1.0-M1","versionType":"semver"},{"lessThanOrEqual":"9.0.115","status":"affected","version":"9.0.0.M23","versionType":"semver"},{"lessThanOrEqual":"8.5.100","status":"affected","version":"8.5.30","versionType":"semver"},{"lessThanOrEqual":"7.0.109","status":"unaffected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"gregk4sec (https://github.com/gregk4sec)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.</p><p>This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100.<br>Other, unsupported versions may also be affected</p><p>Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.</p>"}],"value":"Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100.\nOther, unsupported versions may also be affected\n\nUsers are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue."}],"metrics":[{"other":{"content":{"text":"low"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-601","description":"CWE-601 URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-09T19:13:13.529Z","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0"}],"source":{"discovery":"EXTERNAL"},"title":"Apache Tomcat: Occasionally open redirect","x_generator":{"engine":"Vulnogram 0.2.0"}}},"cveMetadata":{"assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","assignerShortName":"apache","cveId":"CVE-2026-25854","datePublished":"2026-04-09T19:13:13.529Z","dateReserved":"2026-02-06T16:25:11.569Z","dateUpdated":"2026-04-10T18:22:34.359Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-09 20:16:24","lastModifiedDate":"2026-04-10 19:16:21","problem_types":["CWE-601","CWE-601 CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"],"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:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"25854","Ordinal":"1","Title":"Apache Tomcat: Occasionally open redirect","CVE":"CVE-2026-25854","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"25854","Ordinal":"1","NoteData":"Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100.\nOther, unsupported versions may also be affected\n\nUsers are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.","Type":"Description","Title":"Apache Tomcat: Occasionally open redirect"}]}}}