{"schema_version":"1.9.0","id":"BIT-tomcat-2026-34483","published":"2026-04-13T10:19:58.030Z","modified":"2026-09-08T08:48:21.094640333Z","aliases":["CVE-2026-34483","GHSA-rv64-5gf8-9qq8"],"summary":"Apache Tomcat: Incomplete escaping of JSON access logs","details":"Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0 through 11.0.20, from 10.1.0 through 10.1.53, from 9.0.40 through 9.0.116.\n\nUsers are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.","affected":[{"package":{"name":"tomcat","ecosystem":"Bitnami","purl":"pkg:bitnami/tomcat"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.40"},{"fixed":"9.0.117"},{"introduced":"10.1.0"},{"fixed":"10.1.54"},{"introduced":"11.0.0"},{"fixed":"11.0.21"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/tomcat/BIT-tomcat-2026-34483.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}],"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2026/04/09/26"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/j1w7304yonlr8vo1tkb5nfs7od1y228b"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34483"}],"database_specific":{"cpes":["cpe:2.3:a:apache:tomcat:*:*:*:*:*:maven:*:*"],"severity":"High"}}