Red Hat Security Advisory: tomcat security update
This advisory addresses multiple security vulnerabilities in Apache Tomcat as packaged for Red Hat Enterprise Linux 10. The issues include a security constraint bypass for CGI scripts (CVE-2025-46701), session fixation via the rewrite valve (CVE-2025-55668), and console manipulation (CVE-2025-55754). Red Hat has released updated Tomcat packages to fix these vulnerabilities. The update is rated as having an Important security impact by Red Hat Product Security. Users of affected Red Hat Enterprise Linux 10 versions should apply the provided updates to mitigate these issues.
AI Analysis
Technical Summary
Red Hat Product Security issued an advisory (RHSA-2026:18537) for Apache Tomcat vulnerabilities affecting Red Hat Enterprise Linux 10. The security fixes address three CVEs: CVE-2025-46701 (security constraint bypass for CGI scripts), CVE-2025-55668 (session fixation via rewrite valve), and CVE-2025-55754 (console manipulation). The advisory includes updated Tomcat packages (version 10.1.49-1.el10) that incorporate these fixes. The vulnerabilities relate to CWE-178 (Improper Neutralization of Input During Web Page Generation), CWE-384 (Session Fixation), and CWE-150 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). No CVSS scores are provided in the advisory. The update is classified as Important by Red Hat, and detailed remediation instructions are available via Red Hat's official update article.
Potential Impact
The vulnerabilities could allow attackers to bypass security constraints on CGI scripts, fixate sessions via the rewrite valve potentially leading to session hijacking, and manipulate the console. These issues may compromise the security of web applications running on affected Tomcat versions. The advisory does not report known exploits in the wild. The overall impact is rated as Important by Red Hat, indicating a significant security risk if unpatched.
Mitigation Recommendations
Red Hat has released updated Tomcat packages (version 10.1.49-1.el10) for Red Hat Enterprise Linux 10 that fix the identified vulnerabilities. Users should apply these official updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: tomcat security update
Description
This advisory addresses multiple security vulnerabilities in Apache Tomcat as packaged for Red Hat Enterprise Linux 10. The issues include a security constraint bypass for CGI scripts (CVE-2025-46701), session fixation via the rewrite valve (CVE-2025-55668), and console manipulation (CVE-2025-55754). Red Hat has released updated Tomcat packages to fix these vulnerabilities. The update is rated as having an Important security impact by Red Hat Product Security. Users of affected Red Hat Enterprise Linux 10 versions should apply the provided updates to mitigate these issues.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security issued an advisory (RHSA-2026:18537) for Apache Tomcat vulnerabilities affecting Red Hat Enterprise Linux 10. The security fixes address three CVEs: CVE-2025-46701 (security constraint bypass for CGI scripts), CVE-2025-55668 (session fixation via rewrite valve), and CVE-2025-55754 (console manipulation). The advisory includes updated Tomcat packages (version 10.1.49-1.el10) that incorporate these fixes. The vulnerabilities relate to CWE-178 (Improper Neutralization of Input During Web Page Generation), CWE-384 (Session Fixation), and CWE-150 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). No CVSS scores are provided in the advisory. The update is classified as Important by Red Hat, and detailed remediation instructions are available via Red Hat's official update article.
Potential Impact
The vulnerabilities could allow attackers to bypass security constraints on CGI scripts, fixate sessions via the rewrite valve potentially leading to session hijacking, and manipulate the console. These issues may compromise the security of web applications running on affected Tomcat versions. The advisory does not report known exploits in the wild. The overall impact is rated as Important by Red Hat, indicating a significant security risk if unpatched.
Mitigation Recommendations
Red Hat has released updated Tomcat packages (version 10.1.49-1.el10) for Red Hat Enterprise Linux 10 that fix the identified vulnerabilities. Users should apply these official updates promptly following Red Hat's guidance at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:18537
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-55668","CVE-2025-55754"]
- Cvss Version
- null
Threat ID: 6a18be67e29bf47b50386e8b
Added to database: 05/28/2026, 22:15:03 UTC
Last enriched: 06/28/2026, 00:33:18 UTC
Last updated: 07/15/2026, 09:06:03 UTC
Views: 210
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.