CVE-2026-86350
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.22 <= 11.0.25 | affected |
| Apache Software Foundation | Apache Tomcat | 10.1.55 <= 10.1.59 | affected |
| Apache Software Foundation | Apache Tomcat | 9.0.118 <= 9.0.121 | affected |
Weaknesses
- CWE-444: CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: total
References
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