CVE-2026-58172
Critical · 9.1CVSS
9.1
EPSS
0.6%
Published
Jun 30, 2026
CISA due date
—
The record
Ocelot through 24.1.0, fixed in commit f156fd4, contains a security control bypass vulnerability that allows denied clients to circumvent IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen in OcelotPipelineExtensions.cs omits SecurityMiddleware, causing requests from blocked IP addresses to be proxied to downstream services without enforcement of the configured allow/block list.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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