Unauthorized Access Vulnerability in FreeIPA Affected by Red Hat
CVE-2026-76578

9.8CRITICAL

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
7 September 2026

What is CVE-2026-76578?

A security flaw in FreeIPA allows an unauthenticated LDAP client to exploit the self-managed OTP token Access Control Instructions (ACI). This lack of authentication and attribute restriction can lead to the creation of a malicious Kerberos principal, which can then be added to the administrators group. Consequently, this may enable a remote attacker to gain unauthorized administrative access to FreeIPA, potentially compromising directory operations and other identity management services in systems utilizing SID.

References

https://access.redhat.com/security/cve/CVE-2026-76578
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2519522
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Gia Bui (yabeow) (Calif.io) for reporting this issue.
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