CVE-2026-24880 — Apache Tomcat: Request smuggling via invalid chunk extension

Description (CNA)

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 (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 11.0.0-M1 through 11.0.18; affected 10.1.0-M1 through 10.1.52; affected 9.0.0.M1 through 9.0.115; affected 8.5.0 through 8.5.100; affected 7.0.0 through 7.0.109; unknown 0 before 7.0.0; unknown 8.0.0-RC1 through 8.0.53

CWE

CWE-444

References

https://lists.apache.org/thread/2c682qnlg2tv4o5knlggqbl9yc2gb5sn

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/04/09/20

CISA-ADP

No English description supplied.

No references supplied.