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A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service.\n\nThis issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.90 though 8.5.100.\n\n\nUsers are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the 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Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat.\n\nWhen using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed.\n\nThis issue affects Apache Tomcat Native:  from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114.\n\n\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected.\n\nApache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue.\n\nApache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24734.json","reference_id":"","reference_type":"","scores":[{"value":"7.4","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24734.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-24734","reference_id":"","reference_type":"","scores":[{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29186","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29285","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29279","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29315","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29175","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29363","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00109","scoring_system":"epss","scoring_elements":"0.29239","published_at":"2026-04-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-24734"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"6.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/apache/tomcat","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat"},{"reference_url":"https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml","reference_id":"","reference_type":"","scores":[{"value":"7.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-21T21:16:49Z/"}],"url":"https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24734","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24734"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440426","reference_id":"2440426","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440426"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24734","reference_id":"CVE-2026-24734","reference_type":"","scores":[{"value":"Moderate","scoring_system":"apache_tomcat","scoring_elements":""}],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24734"},{"reference_url":"https://github.com/advisories/GHSA-mgp5-rv84-w37q","reference_id":"GHSA-mgp5-rv84-w37q","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-mgp5-rv84-w37q"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:5611","reference_id":"RHSA-2026:5611","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:5611"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:5612","reference_id":"RHSA-2026:5612","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:5612"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/641?format=json","purl":"pkg:maven/org.apache.tomcat/tomcat@10.1.52","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-35xg-a746-5qgc"},{"vulnerability":"VCID-gyed-x6s8-ybhr"},{"vulnerability":"VCID-maw6-4qs5-ykae"},{"vulnerability":"VCID-rsxs-u5cc-rkgj"},{"vulnerability":"VCID-yrzk-1dbk-muhy"},{"vulnerability":"VCID-zw2q-kna8-mqcm"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.tomcat/tomcat@10.1.52"},{"url":"http://public2.vulnerablecode.io/api/packages/577?format=json","purl":"pkg:maven/org.apache.tomcat/tomcat@11.0.18","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-35xg-a746-5qgc"},{"vulnerability":"VCID-74tx-sx8a-guhs"},{"vulnerability":"VCID-gyed-x6s8-ybhr"},{"vulnerability":"VCID-rsxs-u5cc-rkgj"},{"vulnerability":"VCID-yrzk-1dbk-muhy"},{"vulnerability"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Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible \nfor a specially crafted request to bypass some rewrite rules. If those \nrewrite rules effectively enforced security constraints, those \nconstraints could be bypassed.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions \nmay also be affected.\n\n\nUsers are recommended to upgrade to version [FIXED_VERSION], which fixes the 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