{"schemaVersion":3,"id":"RHSA-2026:26323","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: tomcat security update","dates":{"published":"2026-06-17T10:08:43.000Z","modified":"2026-10-01T10:08:19.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.4,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":7.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":5.6,"impact":8.7,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"redhat","product":"tomcat","name":"tomcat","label":"tomcat","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-admin-webapps","name":"tomcat-admin-webapps","label":"tomcat-admin-webapps","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-admin-webapps","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-docs-webapp","name":"tomcat-docs-webapp","label":"tomcat-docs-webapp","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-docs-webapp","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-el-3.0-api","name":"tomcat-el-3.0-api","label":"tomcat-el-3.0-api","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-el-3.0-api","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-jsp-2.3-api","name":"tomcat-jsp-2.3-api","label":"tomcat-jsp-2.3-api","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-jsp-2.3-api","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-lib","name":"tomcat-lib","label":"tomcat-lib","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-lib","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-servlet-4.0-api","name":"tomcat-servlet-4.0-api","label":"tomcat-servlet-4.0-api","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-servlet-4.0-api","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null},{"vendor":"redhat","product":"tomcat-webapps","name":"tomcat-webapps","label":"tomcat-webapps","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/tomcat-webapps","purlType":"rpm","versions":[{"text":"< 1:9.0.117-1.el9_8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:9.0.117-1.el9_8","eol":null,"hubHref":null}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:26323","label":"access.redhat.com/errata/RHSA-2026:26323","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440426","label":"bugzilla.redhat.com/show_bug.cgi?id=2440426","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26323.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26323.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2025-66614","label":"access.redhat.com/security/cve/CVE-2025-66614","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440430","label":"bugzilla.redhat.com/show_bug.cgi?id=2440430","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-66614","label":"www.cve.org/CVERecord?id=CVE-2025-66614","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66614","label":"nvd.nist.gov/vuln/detail/CVE-2025-66614","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/vw6lxtlh2qbqwpb61wd3sv1flm2nttw7","label":"lists.apache.org/thread/vw6lxtlh2qbqwpb61wd3sv1flm2nttw7","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-24733","label":"access.redhat.com/security/cve/CVE-2026-24733","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440437","label":"bugzilla.redhat.com/show_bug.cgi?id=2440437","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-24733","label":"www.cve.org/CVERecord?id=CVE-2026-24733","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24733","label":"nvd.nist.gov/vuln/detail/CVE-2026-24733","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f","label":"lists.apache.org/thread/6xk3t65qpn1myp618krtfotbjn1qt90f","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-24734","label":"access.redhat.com/security/cve/CVE-2026-24734","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-24734","label":"www.cve.org/CVERecord?id=CVE-2026-24734","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24734","label":"nvd.nist.gov/vuln/detail/CVE-2026-24734","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml","label":"lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-24880","label":"access.redhat.com/security/cve/CVE-2026-24880","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457040","label":"bugzilla.redhat.com/show_bug.cgi?id=2457040","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-24880","label":"www.cve.org/CVERecord?id=CVE-2026-24880","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24880","label":"nvd.nist.gov/vuln/detail/CVE-2026-24880","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/2c682qnlg2tv4o5knlggqbl9yc2gb5sn","label":"lists.apache.org/thread/2c682qnlg2tv4o5knlggqbl9yc2gb5sn","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-25854","label":"access.redhat.com/security/cve/CVE-2026-25854","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457039","label":"bugzilla.redhat.com/show_bug.cgi?id=2457039","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-25854","label":"www.cve.org/CVERecord?id=CVE-2026-25854","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25854","label":"nvd.nist.gov/vuln/detail/CVE-2026-25854","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0","label":"lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-29145","label":"access.redhat.com/security/cve/CVE-2026-29145","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457037","label":"bugzilla.redhat.com/show_bug.cgi?id=2457037","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-29145","label":"www.cve.org/CVERecord?id=CVE-2026-29145","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29145","label":"nvd.nist.gov/vuln/detail/CVE-2026-29145","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7kltws57jfz","label":"lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7kltws57jfz","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-34483","label":"access.redhat.com/security/cve/CVE-2026-34483","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457044","label":"bugzilla.redhat.com/show_bug.cgi?id=2457044","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34483","label":"www.cve.org/CVERecord?id=CVE-2026-34483","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34483","label":"nvd.nist.gov/vuln/detail/CVE-2026-34483","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/j1w7304yonlr8vo1tkb5nfs7od1y228b","label":"lists.apache.org/thread/j1w7304yonlr8vo1tkb5nfs7od1y228b","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-34487","label":"access.redhat.com/security/cve/CVE-2026-34487","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457038","label":"bugzilla.redhat.com/show_bug.cgi?id=2457038","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34487","label":"www.cve.org/CVERecord?id=CVE-2026-34487","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34487","label":"nvd.nist.gov/vuln/detail/CVE-2026-34487","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h","label":"lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h","hostname":"lists.apache.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-34500","label":"access.redhat.com/security/cve/CVE-2026-34500","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2457043","label":"bugzilla.redhat.com/show_bug.cgi?id=2457043","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34500","label":"www.cve.org/CVERecord?id=CVE-2026-34500","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34500","label":"nvd.nist.gov/vuln/detail/CVE-2026-34500","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2","label":"lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2","hostname":"lists.apache.org","tags":["ARTICLE"]}],"lineage":{"upstream":["CVE-2025-66614","CVE-2026-24733","CVE-2026-24734","CVE-2026-24880","CVE-2026-25854","CVE-2026-29145","CVE-2026-34483","CVE-2026-34487","CVE-2026-34500"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-06-17T10:08:43.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-01T10:08:19.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T16:24:21.730Z","stale":false,"partial":false}}