Red Hat Security Advisory: tomcat9 security update
Description
Multiple security vulnerabilities have been identified in Apache Tomcat as used in Red Hat products, including a remote code execution (RCE) due to a time-of-check to time-of-use (TOCTOU) issue in JSP compilation (CVE-2024-50379) and a denial of service (DoS) vulnerability via malformed HTTP/2 PRIORITY_UPDATE frames (CVE-2025-31650). Red Hat has released security updates addressing these issues for various versions of Tomcat9 and related products. The vulnerabilities have been rated with high severity, and patches are available.
Affected software
pkg:rpm/redhat/pki-servlet-engineRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache Tomcat, the servlet container for Java Servlet and JavaServer Pages technologies, has multiple security flaws addressed in Red Hat security advisories. The primary issue is a remote code execution vulnerability (CVE-2024-50379) caused by a TOCTOU race condition during JSP compilation. Additionally, a denial of service vulnerability (CVE-2025-31650) exists via malformed HTTP/2 PRIORITY_UPDATE frames. Red Hat has issued patches for affected versions across multiple Red Hat Enterprise Linux distributions and JBoss Web Server releases. The advisories confirm that fixes are available and provide guidance for applying updates.
Potential Impact
Successful exploitation of CVE-2024-50379 could allow an attacker to execute arbitrary code remotely due to a TOCTOU flaw in JSP compilation. CVE-2025-31650 could enable denial of service conditions via malformed HTTP/2 frames. These vulnerabilities pose significant risks to affected systems running vulnerable versions of Tomcat, potentially leading to system compromise or service disruption.
Mitigation Recommendations
Red Hat has released official security updates that fix these vulnerabilities. Users should apply the provided patches promptly according to Red Hat's update instructions. The vendor advisory explicitly confirms that patches are available and remediation is provided through updated packages. No additional mitigation steps beyond applying the official updates are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:1920
- Cve Count
- 1
- State
- PUBLISHED
Threat ID: 6a71fee8bf8831d539fefff1
Added to database: 08/04/2026, 15:02:00 UTC
Last enriched: 09/26/2026, 05:22:53 UTC
Last updated: 10/08/2026, 06:48:11 UTC
Views: 47
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