Description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.
Published: 2026-10-29
Score: 8.3 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-r9pv-5rpp-vm8g OpenAM Unauthenticated Session Hijacking via Information Exposure in CDCServlet
History

Thu, 29 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Openidentityplatform
Openidentityplatform openam
Vendors & Products Openidentityplatform
Openidentityplatform openam

Thu, 29 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.
Title OpenAM Session Hijacking via CDSSO
Weaknesses CWE-201
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}


Subscriptions

Openidentityplatform Openam
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-29T21:13:55.740Z

Reserved: 2026-05-08T18:07:27.341Z

Link: CVE-2026-45049

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-29T22:17:02.400

Modified: 2026-10-29T22:17:02.400

Link: CVE-2026-45049

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T22:30:13Z

Weaknesses
  • CWE-201

    Insertion of Sensitive Information Into Sent Data