SB2026070866 - Red Hat Enterprise Linux 9 update for tomcat

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Main Vulnerability Database SB2026070866

SB2026070866 - Red Hat Enterprise Linux 9 update for tomcat

Published: July 8, 2026

Security Bulletin ID SB2026070866
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2026-29146)

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to decrypt protected communications.

The vulnerability exists due to the use of a padding-oracle-prone cryptographic mode in EncryptInterceptor when processing encrypted traffic with the default CBC configuration. A remote attacker can perform a padding oracle attack to decrypt protected communications.


2) Protection Mechanism Failure (CVE-ID: CVE-2026-34486)

CWE-ID: CWE-693 - Protection Mechanism Failure

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass the EncryptInterceptor.

The vulnerability exists due to an implementation error in the EncryptInterceptor when processing traffic protected by the fix for #VU125739 (CVE-2026-29146). A remote attacker can exploit the flawed handling to bypass the EncryptInterceptor.


Remediation

Install update from vendor's website.

References