CVE-2026-86350 (GCVE-0-2026-86350)

Vulnerability from cvelistv5 – Published: 2026-09-23 11:31 – Updated: 2026-09-23 16:17
VLAI
Title
Apache Tomcat: Regression in fix for CVE-2026-41293 can trigger request header mix-up
Summary
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.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:16 UTC
CWE
  • CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Tomcat Affected: 11.0.22 , ≤ 11.0.25 (semver)
Affected: 10.1.55 , ≤ 10.1.59 (semver)
Affected: 9.0.118 , ≤ 9.0.121 (semver)
guessed Create a notification for this product.
Credits
Jeppe Weikop
Show details on NVD website
To clipboard 

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