CVE-2026-105118 LOW

CVE-2026-105118: OpenAM before 16.1.3 Open Redirect via Unverified id_token_hint in endSession

Vendor Openidentityplatform

Product OpenAM

Weakness CWE-347

Published October 3, 2026

Last update October 3, 2026

View on NVD All CVEs

CVSS base score

2.3/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction —

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 3, 2026 CVE published

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-105118 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/347.html AskarLabs — CWE-347 write-up Improper Verification of Cryptographic Signature

Related vulnerabilities

04Related CVE

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