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.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 24 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 24 Jul 2026 04:45:00 +0000

Type Values Removed Values Added
First Time appeared Zenml-io
Zenml-io zenml-io/zenml
Vendors & Products Zenml-io
Zenml-io zenml-io/zenml

Fri, 24 Jul 2026 03:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Rate-limit Bypass in zenml-io/zenml
Weaknesses CWE-290
References
Metrics cvssV3_0

{'score': 6.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2026-07-24T12:24:23.509Z

Reserved: 2026-06-10T17:41:21.911Z

Link: CVE-2026-11922

cve-icon Vulnrichment

Updated: 2026-07-24T12:24:19.391Z

cve-icon NVD

Status : Received

Published: 2026-07-24T04:16:51.193

Modified: 2026-07-24T13:17:23.790

Link: CVE-2026-11922

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T20:45:03Z

Weaknesses