Information disclosure in Openidentityplatform Openam
CVE-2026-105120
OpenAM before 16.1.3 contains an authorization bypass vulnerability in the sessions REST endpoint query operation that allows realm administrators to list sessions of every realm. Attackers holding delegated RealmAdmin privileges can supply a _queryFilter naming another realm to disclose usernames, universal IDs, and session handles across tenant boundaries.
Vulnerability class: Information Disclosure
Published .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-x8cj-3hqv-cgwh (vendor-advisory)
- www.vulncheck.com/advisories/openam-before-16.1.3-cross-realm-session-disclosur… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-105120?
- CVE-2026-105120 is a medium-severity vulnerability in Openidentityplatform Openam, classified under Information Disclosure. CVSS score: 4.9/10. Published 2026-10-03.
- How severe is CVE-2026-105120?
- Medium severity. CVSS v3 base score is 4.9 out of 10.