CVE-2026-117545

Summary

IBM webMethods Integration Server 12.1 contains an authentication bypass vulnerability (CWE-287) where an authenticated attacker can circumvent security restrictions due to improper authentication enforcement. This allows a malicious insider or compromised account holder to perform unauthorized actions beyond their assigned privileges.

Exploitability

Exploitation requires valid credentials and low privilege access; no public exploit exists, but the vulnerability is straightforward for an authenticated attacker to leverage given knowledge of the bypass mechanism.

Blast radius

Successful exploitation could lead to full compromise of confidentiality, integrity, and availability within the Integration Server environment, potentially affecting downstream systems integrated via webMethods.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to IBM webMethods Integration Server 12.1 Fix Pack 4 or later; if unavailable, apply IBM Security Advisory II03769 immediately and restrict administrative access to trusted networks.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.