Skip to content
fr Sign in
Not rated

CVE-2026-86350 Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused…

Description

Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused by a regression in fix for CVE-2026-41293 can trigger request header mix-up. This issue affects Apache Tomcat: from 11.0.22 through 11.0.25, from 10.1.55 through 10.1.59, from 9.0.118 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Affected products and versions

Product Affected versions Fixed in
Apache Tomcat 11.0 11.0.22 → 11.0.25 No fix stated
Apache Tomcat 10.1 10.1.55 → 10.1.59 No fix stated
Apache Tomcat 9.0 9.0.118 → 9.0.121 No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Apache Tomcat

The 141 CVEs of Apache Tomcat →
CVE-2026-103119 Buffer under-read vulnerability in Apache Tomcat meant that a large non-blocking write could result in the response body… Not rated CVE-2026-101356 Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous… Not rated CVE-2026-101296 A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with… Not rated CVE-2026-93446 Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently Not rated
Track this CVE