CVE-2026-73196

A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-27)

CWE

CWE-770

Published

2026-08-20

Modified

2026-10-27

Record from

the NVD, synced 2026-10-27

Affected

• freeipa:freeipa
• redhat:enterprise_linux

References

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

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