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

EPSS: 0.003 (23.0th percentile), scored 2026-11-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Openidentityplatform Openam

Weakness classification (CWE)

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

References

github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-6gg2-2v5m-454x (vendor-advisory)
www.vulncheck.com/advisories/openam-before-16.1.4-insufficient-response-validat… (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.