Vulnerability · Published Oct 3, 2026 · Assigned by VulnCheck

CVE-2026-105114OpenAM before 16.1.3 Reflected XSS via OAuth2 Authorization Error Page

Medium 6.1

In plain English

A medium-severity cross-site scripting in OpenAM from OpenIdentityPlatform. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 93.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenAM before 16.1.3 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script by supplying crafted parameters rendered unencoded on the OAuth2 authorization error page. Attackers can lure victims to a crafted /oauth2/authorize link with repeated parameters to run JavaScript in the OpenAM origin, acting within existing sessions or redirecting to phishing pages.

Affected products (as reported)

Vendor	Product	Versions
OpenIdentityPlatform	OpenAM	0 – before 16.1.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-3m32-w9x3-vvq8) vendor-advisory
VulnCheck Advisory: OpenAM before 16.1.3 Reflected XSS via OAuth2 Authorization Error Page third-party-advisory