What is CVE-2026-123544?

CVE-2026-123544 is a medium-severity vulnerability in Openidentityplatform Openam, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.8/10. Published 2026-11-08.

How severe is CVE-2026-123544?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Openidentityplatform Openam

CVE-2026-123544

OpenAM before 16.1.4 and its client SDK fail to sufficiently validate responses on the internal server-to-server SOAP channel, allowing network-positioned attackers to affect integrity and availability. Attackers who intercept unencrypted traffic or control a site server can crash receiving processes, tamper with writable files, and possibly execute code.

Published 2026-11-08.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/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

Weakness classification (CWE)

CWE-470 — Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection)

References

GitHub Security Advisory (GHSA-6gg2-2v5m-454x) (vendor-advisory)
VulnCheck Advisory: OpenAM before 16.1.4 Insufficient Response Validation in Internal SOAP Channel (third-party-advisory)

Frequently asked questions

What is CVE-2026-123544?: CVE-2026-123544 is a medium-severity vulnerability in Openidentityplatform Openam, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.8/10. Published 2026-11-08.
How severe is CVE-2026-123544?: Medium severity. CVSS v3 base score is 6.8 out of 10.