Medium severity · published Aug 20, 2026
CVE-2026-73196
Ipa: freeipa: authenticated dos in `otptoken-add` via unbounded otp key decoding/re-encoding
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0; 9.0; 10.0 · source: NVD
FR
Freeipa · Freeipa
before 4.13.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73196
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73196
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-73196
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2474712
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