CVE-2026-105120

MEDIUM 4.9

OpenAM before 16.1.3 Cross-Realm Session Disclosure via Sessions REST Endpoint

CVSS Score

4.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-200
Vendor	openidentityplatform
Product	openam
Published	Oct 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

OpenIdentityPlatform / OpenAM

0 < 16.1.3

OpenIdentityPlatform / OpenAM

0 < 16.1.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-x8cj-3hqv-cgwh vulncheck.com: https://www.vulncheck.com/advisories/openam-before-16.1.3-cross-realm-session-disclosure-via-sessions-rest-endpoint

Credits

vharseko maximthomas tsujiguchitky