CVE-2026-45049 (CVSS 8.3)

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.

Is your site exposed to CVE-2026-45049?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.3

HIGH

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

Weakness Type (CWE)

CWE-201 CWE-201

References

Other References

https://github.com/OpenIdentityPlatform/OpenAM/commit/bda647f8540d8fb28aaaed716914692678c5a0a7 https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1 https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-r9pv-5rpp-vm8g

Frequently Asked Questions

What is CVE-2026-45049? +

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. It has a CVSS v3.1 base score of 8.3 (HIGH).

How severe is CVE-2026-45049? +

CVE-2026-45049 has a CVSS v3.1 score of 8.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-45049? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-27868

An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration …

CVE-2025-24858

Develocity (formerly Gradle Enterprise) before 2024.3.1 allows an attacker who has network access to a Develocity server to obtain the …

CVE-2025-48045

An unauthenticated HTTP GET request to the /client.php endpoint will disclose the default administrator user credentials.

CVE-2024-7205

When the device is shared, the homepage module are before 2.19.0 in eWeLink Cloud Service allows Secondary user to take …

CVE-2025-8862

YugabyteDB has been collecting diagnostics information from YugabyteDB servers, which may include sensitive gflag configurations. To mitigate this, we recommend …

CVE-2025-64502

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. The MongoDB …

CVE-2026-45049