What is CVE-2026-45049?

CVE-2026-45049 is a high-severity vulnerability in Openidentityplatform Openam, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 8.3/10. Published 2026-10-29.

How severe is CVE-2026-45049?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Openidentityplatform Openam

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.

Published 2026-10-29.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Openidentityplatform Openam — versions < 16.1.1

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

Frequently asked questions

What is CVE-2026-45049?: CVE-2026-45049 is a high-severity vulnerability in Openidentityplatform Openam, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 8.3/10. Published 2026-10-29.
How severe is CVE-2026-45049?: High severity. CVSS v3 base score is 8.3 out of 10.