CVE-2026-105118

Medium

Description

OpenAM before 16.1.3 contains an open redirect vulnerability that allows unauthenticated attackers to redirect users by supplying an unverified id_token_hint to the /oauth2/connect/endSession endpoint. Attackers can name any realm client in a forged hint to redirect victims to any registered post-logout URI, enabling phishing that borrows the OpenAM host's trust.

SeverityMedium

CVSS4.7

Exploit probability—

ProductOpenAM

PublishedOct 3, 2026

First seenOct 3, 2026

Weakness typeCWE-347CWE-347

How to fix

Update

OpenIdentityPlatform OpenAM16.1.3 or later

Vendor advisories

github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-6f8c-crwq-jqm3

Affected products

Product	Affected versions	Fixed in
OpenIdentityPlatform OpenAM	v < 16.1.3	16.1.3

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