{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-55276: Apache Tomcat: Logged effective web.xml is incomplete","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-55276","status":"final","version":"1","initial_release_date":"2026-06-29T20:42:23.257Z","current_release_date":"2026-06-30T13:59:37.872Z","revision_history":[{"date":"2026-06-29T20:42:23.257Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, 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 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-55276 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-55276"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-55276"},{"category":"external","summary":"lists.apache.org","url":"https://lists.apache.org/thread/jy09xjlzn6r2qwvqoph8vcmf959yq68v"}]},"product_tree":{"branches":[{"category":"vendor","name":"Apache Software Foundation","branches":[{"category":"product_name","name":"Apache Tomcat","branches":[{"category":"product_version_range","name":">=11.0.0-M1 <=11.0.22","product":{"name":"Apache Software Foundation Apache Tomcat >=11.0.0-M1 <=11.0.22","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_tomcat:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=10.1.0-M1 <=10.1.55","product":{"name":"Apache Software Foundation Apache Tomcat >=10.1.0-M1 <=10.1.55","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_tomcat:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=9.0.0.M1 <=9.0.118","product":{"name":"Apache Software Foundation Apache Tomcat >=9.0.0.M1 <=9.0.118","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_tomcat:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=8.5.0 <=8.5.100","product":{"name":"Apache Software Foundation Apache Tomcat >=8.5.0 <=8.5.100","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_tomcat:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"0","product":{"name":"Apache Software Foundation Apache Tomcat 0","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:apache_software_foundation:apache_tomcat:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-55276","title":"Apache Tomcat: Logged effective web.xml is incomplete","notes":[{"category":"description","text":"Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, 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 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"],"fixed":["CSAFPID-5"]},"scores":[{"cvss_v3":{"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"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 0.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"]}]}]}