# CVE-2026-105120 — OpenIdentityPlatform OpenAM

> As of 2026-10-03, CVE-2026-105120 is a MEDIUM-severity vulnerability in OpenIdentityPlatform OpenAM, CVSS v3.1 4.9. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-105120 as of 2026-10-03; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-10-03

## What is 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.

The record classifies CVE-2026-105120 under weakness class [CWE-200](https://intel.threadlinqs.com/cwe/CWE-200). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 2 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.9 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **CVSS v4.0 base score:** 6.9 (`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`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-03

## Is CVE-2026-105120 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [OpenIdentityPlatform](https://intel.threadlinqs.com/vendors/openidentityplatform): OpenAM

## How to fix CVE-2026-105120

No vendor patch reference has been recorded for CVE-2026-105120 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-105120

No threat campaign in the Threadlinqs corpus currently references CVE-2026-105120, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-04. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-x8cj-3hqv-cgwh)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/openam-before-16.1.3-cross-realm-session-disclosure-via-sessions-rest-endpoint)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-105120
Full detection coverage and IOCs for threats exploiting CVE-2026-105120 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp