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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://access.redhat.com/security/cve/CVE-2026-73196 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2474712 Issue Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · redhat, freeipaNVD modified 2026-10-27 10:10
Affected (CPE criteria) 6
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*cpe:2.3:a:freeipa:freeipa:*:*:*:*:*:*:*:*
References 2
- https://access.redhat.com/security/cve/CVE-2026-73196 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2474712 Issue Tracking, Vendor Advisory