Red Hat Security Advisory: tomcat security update
Two security vulnerabilities have been identified in Apache Tomcat related to the EncryptInterceptor component. The first vulnerability (CVE-2026-29146) involves information disclosure 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 issued a security advisory and released updated Tomcat packages for Red Hat Enterprise Linux 8.8 to address these issues.
AI Analysis
Technical Summary
This advisory covers two vulnerabilities in Apache Tomcat's EncryptInterceptor. CVE-2026-29146 is an information disclosure vulnerability caused by a Padding Oracle attack vector, allowing attackers to potentially gain unauthorized information. CVE-2026-34486 involves a bypass of the EncryptInterceptor that results in missing encryption of sensitive data. Red Hat has released updated Tomcat packages (version 9.0.87-2.el8_8) for Red Hat Enterprise Linux 8.8 variants to fix these vulnerabilities. The advisory rates the update as Important (high severity) and provides links to the updated packages and remediation instructions.
Potential Impact
Successful exploitation of CVE-2026-29146 could lead to unauthorized disclosure of sensitive information due to a Padding Oracle vulnerability. CVE-2026-34486 could allow sensitive data to be transmitted or stored without proper encryption due to an EncryptInterceptor bypass. Both vulnerabilities compromise the confidentiality of data handled by Apache Tomcat. There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated Tomcat packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the provided security update (tomcat-9.0.87-2.el8_8) as detailed in the Red Hat advisory (RHSA-2026:37136) and the update instructions at https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: tomcat security update
Description
Two security vulnerabilities have been identified in Apache Tomcat related to the EncryptInterceptor component. The first vulnerability (CVE-2026-29146) involves information disclosure 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 issued a security advisory and released updated Tomcat packages for Red Hat Enterprise Linux 8.8 to address these issues.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two vulnerabilities in Apache Tomcat's EncryptInterceptor. CVE-2026-29146 is an information disclosure vulnerability caused by a Padding Oracle attack vector, allowing attackers to potentially gain unauthorized information. CVE-2026-34486 involves a bypass of the EncryptInterceptor that results in missing encryption of sensitive data. Red Hat has released updated Tomcat packages (version 9.0.87-2.el8_8) for Red Hat Enterprise Linux 8.8 variants to fix these vulnerabilities. The advisory rates the update as Important (high severity) and provides links to the updated packages and remediation instructions.
Potential Impact
Successful exploitation of CVE-2026-29146 could lead to unauthorized disclosure of sensitive information due to a Padding Oracle vulnerability. CVE-2026-34486 could allow sensitive data to be transmitted or stored without proper encryption due to an EncryptInterceptor bypass. Both vulnerabilities compromise the confidentiality of data handled by Apache Tomcat. There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated Tomcat packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the provided security update (tomcat-9.0.87-2.el8_8) as detailed in the Red Hat advisory (RHSA-2026:37136) and the update instructions at https://access.redhat.com/articles/11258. No additional mitigations 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-2026:37136
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-34486"]
- Cvss Version
- null
Threat ID: 6a4f6c1068715ace43153672
Added to database: 07/09/2026, 09:38:24 UTC
Last enriched: 07/09/2026, 09:40:25 UTC
Last updated: 07/10/2026, 02:47:18 UTC
Views: 15
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