CVE-2026-24880

Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. 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.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.

Affected packages (6)

• Bitnami/tomcatfrom 0, < 9.0.116, >= 10.1.0, < 10.1.53, >= 11.0.0, < 11.0.20
• Debian/tomcat10from 0
• Debian/tomcat11from 0
• Debian/tomcat9from 0, < 9.0.70-2
• Maven/org.apache.tomcat.embed:tomcat-embed-core>= 7.0.0, < 9.0.116
• Maven/org.apache.tomcat:tomcat-coyote>= 7.0.0, < 9.0.116

CVSS scores

References (15)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-24880
• ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-24880
• PATCHhttps://github.com/apache/tomcat
• WEBhttps://github.com/apache/tomcat/commit/1b586d6aa8ae65726da5fa8799427b5d4718478a
• WEBhttps://github.com/apache/tomcat/commit/1e71441a15972f56e661b0b549fb9e5d838b83bb
• WEBhttps://github.com/apache/tomcat/commit/2cb06c34f661ca42f7570bbcc21e99806184bcc5
• WEBhttps://github.com/apache/tomcat/commit/6d478dbe18b7c4bb671c30fedf130309b0dab77c
• WEBhttps://github.com/apache/tomcat/commit/f07df938d00f7419b40fa65aa912966d0efac522
• WEBhttps://github.com/apache/tomcat/commit/fde1a8235fb73125217bd41e162aa0a113f33552
• WEBhttps://lists.apache.org/thread/2c682qnlg2tv4o5knlggqbl9yc2gb5sn
• WEBhttps://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
• WEBhttps://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20
• WEBhttps://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
• WEBhttps://www.herodevs.com/vulnerability-directory/cve-2026-24880
• WEBhttp://www.openwall.com/lists/oss-security/2026/04/09/20