CVE-2026-18531
IBM MAS uses axios-1.15.2, protobufjs-8.0.1 and undici-7.26 which is vulnerable to multiple CVEs, and contains vulnerabilities related to missing Secure attribute on mas-redirect-uri cookie and weak HMAC Session Secret
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
IBM MAS uses axios-1.15.2, protobufjs-8.0.1 and undici-7.26 which is vulnerable to multiple CVEs, and contains vulnerabilities related to missing Secure attribute on mas-redirect-uri cookie and weak HMAC Session Secret
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.
- Record
CVE-2026-18531- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
EUVDEUVD-2026-53443
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.
- Record
EUVD-2026-53443- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fjm9-fv2r-mxmv
IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with...
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.
- Record
GHSA-fjm9-fv2r-mxmv- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-18531- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-18531 is a medium vulnerability (CVSS 5.3) in Ibm Maximo Application Suite, published August 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 31st percentile. No source names a fixed version.