CVE-2026-11922

A vulnerability in zenml-io/zenml versions 0.57.0 through 0.94.2 allows an attacker to bypass rate-limiting on the `POST /api/v1/login` and self password-change endpoints by rotating the `X-Forwarded-For` header. The rate limiter keys requests by `request.client.host`, which is derived from the `X-Forwarded-For` header when Uvicorn is launched with `--proxy-headers --forwarded-allow-ips *`. This configuration allows clients to control the value of `request.client.host`, effectively bypassing rate-limiting protections. This vulnerability leaves the affected endpoints open to unthrottled credential guessing attacks.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/zenml-io/zenml/commit/8a2214bdd63eb8200ce4719d82c6f0d935e922d1
https://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e
https://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e

Configurations

No configuration.

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad en las versiones 0.57.0 a 0.94.2 de zenml-io/zenml permite a un atacante eludir la limitación de velocidad en los endpoints ’POST /api/v1/login’ y de cambio de contraseña propio rotando el encabezado ’X-Forwarded-For’. El limitador de velocidad clavea las solicitudes por ’request.client.host’, que se deriva del encabezado ’X-Forwarded-For’ cuando Uvicorn se inicia con ’--proxy-headers --forwarded-allow-ips *’. Esta configuración permite a los clientes controlar el valor de ’request.client.host’, eludiendo eficazmente las protecciones de limitación de velocidad. Esta vulnerabilidad deja los endpoints afectados expuestos a ataques de adivinanza de credenciales sin limitación.

Information

Published : 2026-07-24 04:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-11922

Mitre link : CVE-2026-11922

CVE.ORG link : CVE-2026-11922

JSON object : View

Products Affected

No product.

CWE

CWE-290

Authentication Bypass by Spoofing

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