CVE-2026-4820 | IBM Maximo Application Suite was vulnerable to because Cookie ltpatoken2_<workspace_name> was not set with secure flag

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.

Published: 2026-04-01 Last update: 2026-04-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-4820 is rated Low Risk (18.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-4820

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-02 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-4820

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]

Weakness enumeration for CVE-2026-4820

Affected software / configurations for CVE-2026-4820

Vendor Product Version Raw CPE
ibm maximo_application_suite >= 8.10, < 8.10.33 cpe:2.3:a:ibm:maximo_application_suite:*:*:*:*:*:*:*:*
ibm maximo_application_suite >= 8.11, < 8.11.30 cpe:2.3:a:ibm:maximo_application_suite:*:*:*:*:*:*:*:*
ibm maximo_application_suite >= 9.0, < 9.0.19 cpe:2.3:a:ibm:maximo_application_suite:*:*:*:*:*:*:*:*
ibm maximo_application_suite >= 9.1, < 9.1.8 cpe:2.3:a:ibm:maximo_application_suite:*:*:*:*:*:*:*:*

References for CVE-2026-4820

cvelogic Threat Intelligence