CVE-2026-27586
2 advisories.
Go/github.com/caddyserver/caddy/v2 CVE-2026-27586: high
Caddy: mTLS client authentication silently fails open when CA certificate file is missing or malformed
Action: Upgrade github.com/caddyserver/caddy/v2 to 2.11.1 or later.
go get github.com/caddyserver/caddy/v2@v2.11.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.1 | - |
Fixed versions
| 2.11.1 |
Sources
- osv: GHSA-hffm-g8v7-wrv7
- https://github.com/caddyserver/caddy/security/advisories/GHSA-hffm-g8v7-wrv7
- https://nvd.nist.gov/vuln/detail/CVE-2026-27586
- https://github.com/caddyserver/caddy/commit/d42d39b4bc237c628f9a95363b28044cb7a7fe72
- https://gist.github.com/moscowchill/9566c79c76c0b64c57f8bd0716f97c48
- https://github.com/caddyserver/caddy
- https://github.com/caddyserver/caddy/releases/tag/v2.11.1
- https://pkg.go.dev/vuln/GO-2026-4539
CVE-2026-27586 · published · modified · JSON
Go/github.com/caddyserver/caddy/v2 CVE-2026-27586: unknown
Caddy mTLS authentication fails open in github.com/caddyserver/caddy/v2
Action: Upgrade github.com/caddyserver/caddy/v2 to 2.11.1 or later.
go get github.com/caddyserver/caddy/v2@v2.11.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.1 | - |
Fixed versions
| 2.11.1 |
Sources
- osv: GO-2026-4539
- https://github.com/caddyserver/caddy/security/advisories/GHSA-hffm-g8v7-wrv7
- https://github.com/caddyserver/caddy/commit/d42d39b4bc237c628f9a95363b28044cb7a7fe72
- https://gist.github.com/moscowchill/9566c79c76c0b64c57f8bd0716f97c48
- https://github.com/caddyserver/caddy/releases/tag/v2.11.1
CVE-2026-27586 · published · modified · JSON