What’s Vulnerable › Vulnerabilities

CVE-2021-29156

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 76.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-25 · updated 2026-06-17
• Weakness: CWE-74

Description

ForgeRock OpenAM before 13.5.1 allows LDAP injection via the Webfinger protocol. For example, an unauthenticated attacker can perform character-by-character retrieval of password hashes, or retrieve a session token or a private key.

Affected products

• ForgeRock Openam: before 13.5.1 — fixed in 13.5.1

How to fix

Upgrade to a fixed version: ForgeRock Openam 13.5.1. Check the vendor advisory for mitigations.

References

• https://bugster.forgerock.org/jira/browse/OPENAM-10135
• https://portswigger.net/research/hidden-oauth-attack-vectors
• https://bugster.forgerock.org/jira/browse/OPENAM-10135
• https://portswigger.net/research/hidden-oauth-attack-vectors

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