CVE-2026-105120

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

State: Published
Severity: 6.9 Medium
Published: Oct 3, 2026
Updated: Oct 5, 2026
Reserved: Oct 3, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.9 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
OpenAMOpenIdentityPlatform	before 16.1.3Affected 16.1.3Not affected
OpenAMOpenIdentityPlatform	before 16.1.3Affected 16.1.3Not affected

References

GitHub Security Advisory (GHSA-x8cj-3hqv-cgwh)vendor-advisory
VulnCheck Advisory: OpenAM before 16.1.3 Cross-Realm Session Disclosure via Sessions REST Endpointthird-party-advisory

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