Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Tomcat | >= 9.0.0, < 9.0.116 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/2c682qnlg2tv4o5knlggqbl9yc2gb5snMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/09/20Mailing ListThird Party Advisory
FAQ
What is CVE-2026-24880?
CVE-2026-24880 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 1...
How severe is CVE-2026-24880?
CVE-2026-24880 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-24880?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Tomcat.