Improper Validation of Certificate with Host Mismatch Affecting open-webui package, versions <0.9.6-r5


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (18th percentile)

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  • Snyk IDSNYK-WOLFILATEST-OPENWEBUI-17671199
  • published29 Jun 2026
  • disclosed22 Jun 2026

Introduced: 22 Jun 2026

NewCVE-2026-54275  (opens in a new tab)
CWE-297  (opens in a new tab)

How to fix?

Upgrade Wolfi open-webui to version 0.9.6-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream open-webui package and not the open-webui package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_hostname TLS SNI check can be bypassed when an existing connection is reused. If an application makes multiple requests to the same domain, but with different per-request server_hostname parameters, then the later calls may succeed by reusing the existing connection when they should have been rejected due to the TLS SNI check. This vulnerability is fixed in 3.14.1.

CVSS Base Scores

version 3.1