CVE-2026-18531
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with session data due to the use of a weak HMAC session signing secret.
Risk Assessment
An attacker could modify session data, potentially leading to unauthorized access, privilege escalation, or session integrity compromise.
Recommendation
Update IBM Maximo Application Suite to a patched version or change the signing secret to a strong, random one.
Other vulnerabilities in IBM Maximo Application Suite
See all- CVE-2025-36386Critical
IBM Maximo Application Suite 9.0.0 through 9.0.15 and 9.1.0 through 9.1.4 could allow a remote attacker to bypass authentication mechanisms and gain unauthorized access to the application.
- CVE-2026-15656Medium
IBM Maximo Application Suite 9.2, 9.1, and 9.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic.
Original NVD description (English source)
IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with session data due to the use of a weak HMAC session signing secret.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS