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 v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-73196	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2474712	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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:::::::*

Configuration 2 (hide)

cpe:2.3:a:freeipa:freeipa:*:*:*:*:*:*:*:*

History

27 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una falla en FreeIPA. Un usuario autenticado con bajos privilegios puede explotar esta vulnerabilidad al enviar un valor de clave de Contraseña de Un Solo Uso (OTP) sobredimensionado. Esta clave sobredimensionada es luego decodificada y recodificada sin límites de tamaño adecuados, consumiendo recursos excesivos de CPU y memoria. Esto puede llevar a una denegación de servicio, degradando la disponibilidad del servicio IPA.

Information

Published : 2026-08-20 11:16

Updated : 2026-10-27 10:10

NVD link : CVE-2026-73196

Mitre link : CVE-2026-73196

CVE.ORG link : CVE-2026-73196

JSON object : View

Products Affected

freeipa

freeipa

redhat

enterprise_linux

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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