Red Hat Security Advisory: tomcat security, bug fix, and enhancement update
This advisory addresses two security vulnerabilities in Apache Tomcat related to the EncryptInterceptor component. The first vulnerability (CVE-2026-29146) is an information disclosure issue via a Padding Oracle attack. The second vulnerability (CVE-2026-34486) involves missing encryption of sensitive data due to an EncryptInterceptor bypass. Red Hat has released an update for Red Hat Enterprise Linux 10 to fix these issues and also removed the tomcat clustering JAR from RPM builds. The update is rated as Important by Red Hat Product Security.
AI Analysis
Technical Summary
The Red Hat security advisory RHSA-2026:36788 reports two vulnerabilities in Apache Tomcat's EncryptInterceptor: CVE-2026-29146, an information disclosure vulnerability via a Padding Oracle attack, and CVE-2026-34486, a missing encryption of sensitive data due to an EncryptInterceptor bypass. These vulnerabilities could lead to unauthorized disclosure of sensitive information. The advisory includes a patch update for Red Hat Enterprise Linux 10 and its extended update support versions. Additionally, a non-security fix removes the tomcat clustering JAR from RPM builds. No CVSS scores are provided in the advisory, but the security impact is rated Important.
Potential Impact
Successful exploitation of CVE-2026-29146 could allow an attacker to gain unauthorized access to sensitive information through a Padding Oracle vulnerability in the EncryptInterceptor. CVE-2026-34486 could allow sensitive data to be exposed due to missing encryption caused by an EncryptInterceptor bypass. These vulnerabilities compromise confidentiality of data handled by Apache Tomcat. The advisory does not report known exploits in the wild.
Mitigation Recommendations
Red Hat has released an official update for Apache Tomcat in Red Hat Enterprise Linux 10 and its extended update support versions that addresses these vulnerabilities. Users should apply the provided update packages to remediate these issues. For detailed update instructions, refer to the Red Hat article at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: tomcat security, bug fix, and enhancement update
Description
This advisory addresses two security vulnerabilities in Apache Tomcat related to the EncryptInterceptor component. The first vulnerability (CVE-2026-29146) is an information disclosure issue via a Padding Oracle attack. The second vulnerability (CVE-2026-34486) involves missing encryption of sensitive data due to an EncryptInterceptor bypass. Red Hat has released an update for Red Hat Enterprise Linux 10 to fix these issues and also removed the tomcat clustering JAR from RPM builds. The update is rated as Important by Red Hat Product Security.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat security advisory RHSA-2026:36788 reports two vulnerabilities in Apache Tomcat's EncryptInterceptor: CVE-2026-29146, an information disclosure vulnerability via a Padding Oracle attack, and CVE-2026-34486, a missing encryption of sensitive data due to an EncryptInterceptor bypass. These vulnerabilities could lead to unauthorized disclosure of sensitive information. The advisory includes a patch update for Red Hat Enterprise Linux 10 and its extended update support versions. Additionally, a non-security fix removes the tomcat clustering JAR from RPM builds. No CVSS scores are provided in the advisory, but the security impact is rated Important.
Potential Impact
Successful exploitation of CVE-2026-29146 could allow an attacker to gain unauthorized access to sensitive information through a Padding Oracle vulnerability in the EncryptInterceptor. CVE-2026-34486 could allow sensitive data to be exposed due to missing encryption caused by an EncryptInterceptor bypass. These vulnerabilities compromise confidentiality of data handled by Apache Tomcat. The advisory does not report known exploits in the wild.
Mitigation Recommendations
Red Hat has released an official update for Apache Tomcat in Red Hat Enterprise Linux 10 and its extended update support versions that addresses these vulnerabilities. Users should apply the provided update packages to remediate these issues. For detailed update instructions, refer to the Red Hat article at https://access.redhat.com/articles/11258. 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-2026:36788
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-34486"]
- Cvss Version
- null
Threat ID: 6a4f6c1068715ace43153768
Added to database: 07/09/2026, 09:38:24 UTC
Last enriched: 07/09/2026, 09:41:14 UTC
Last updated: 07/10/2026, 02:47:18 UTC
Views: 3
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