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Vulnerability Report: GO-2026-4539

CVE-2026-27586, GHSA-hffm-g8v7-wrv7
Affects: github.com/caddyserver/caddy/v2
Published: Feb 26, 2026

Caddy mTLS authentication fails open in github.com/caddyserver/caddy/v2

For detailed information about this vulnerability, visit https://github.com/caddyserver/caddy/security/advisories/GHSA-hffm-g8v7-wrv7.

Affected Packages

Path

Go Versions

Symbols
github.com/caddyserver/caddy/v2/modules/caddytls

before v2.11.1
- ClientAuthentication.ConfigureTLSConfig
- ConnectionPolicies.Provision

Aliases

References

Feedback

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