Denial of Service Vulnerability in FreeIPA by Red Hat
CVE-2026-73196

4.3MEDIUM

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:
20 August 2026

What is CVE-2026-73196?

A flaw exists in FreeIPA that allows a low-privilege authenticated user to exploit the service by submitting an oversized One-Time Password (OTP) key value. This oversized key is processed without adequate size restrictions, resulting in a significant consumption of CPU and memory resources. Such misuse can ultimately lead to a denial of service, which negatively impacts the availability of the IPA service.

References

https://access.redhat.com/security/cve/CVE-2026-73196
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2474712
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Found by AISLE in partnership with Red Hat.
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