What is CVE-2026-4820?

CVE-2026-4820 is a medium-severity vulnerability in IBM Maximo Application Suite, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 4.3/10. Published 2026-04-01.

How severe is CVE-2026-4820?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in IBM Maximo Application Suite

CVE-2026-4820

IBM Maximo Application Suite 9.1, 9.0, 8.11, and 8.10 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.

EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Ibm Maximo Application Suite — versions 9.1.0, 9.0, 8.11.0
Ibm Maximo_application_suite

Weakness classification (CWE)

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-4820?: CVE-2026-4820 is a medium-severity vulnerability in IBM Maximo Application Suite, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 4.3/10. Published 2026-04-01.
How severe is CVE-2026-4820?: Medium severity. CVSS v3 base score is 4.3 out of 10.