SB2026111338 - Multiple vulnerabilities in IBM webMethods Integration
Published: November 13, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Improper Certificate Validation (CVE-ID: CVE-2026-34477)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a man-in-the-middle attack.
The vulnerability exists due to improper certificate validation in the TLS hostname verification handling of the verifyHostName attribute in Log4j Core SSL configuration when establishing TLS connections for SMTP, Socket, or Syslog appenders. A remote attacker can present a certificate issued by a trusted certificate authority to perform a man-in-the-middle attack.
The issue occurs only when TLS is configured via a nested SSL configuration element, and it does not affect the HTTP appender.
2) Improper validation of certificate with host mismatch (CVE-ID: CVE-2025-68161)
CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N]
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to the Socket Appender does not perform TLS hostname verification of the peer certificate, even when the "verifyHostName" configuration attribute or the "log4j2.sslVerifyHostName" system property is set to true. A remote attacker can perform MitM attack and intercept or redirect the log traffic.
3) Improper input validation (CVE-ID: CVE-2026-47065)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper input validation within the Third Party (Apache Mina) component in Oracle Access Manager. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.
Remediation
Install update from vendor's website.