CVE-2026-86350

CVE CVE-2026-86350EUVD EUVD-2026-85235Published 2026-09-23T11:31:36.000ZLast changed 2026-09-23T16:17:11.000ZCVSS 9.1

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Apache Software Foundation — Apache Tomcat 11.0.22 ≤11.0.25; 10.1.55 ≤10.1.59; 9.0.118 ≤9.0.121

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Apache — Tomcat

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