CVE-2026-27588
2 advisories.
Go/github.com/caddyserver/caddy/v2 CVE-2026-27588: high, EPSS 0.60%
Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass
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-x76f-jf84-rqj8
- https://github.com/caddyserver/caddy/security/advisories/GHSA-x76f-jf84-rqj8
- https://nvd.nist.gov/vuln/detail/CVE-2026-27588
- https://github.com/caddyserver/caddy/commit/eec32a0bb5a11651c6a7b04ce82dc50610f2b27e
- https://github.com/caddyserver/caddy
- https://github.com/caddyserver/caddy/releases/tag/v2.11.1
- https://pkg.go.dev/vuln/GO-2026-4541
CVE-2026-27588 · published · modified · JSON
Go/github.com/caddyserver/caddy/v2 CVE-2026-27588: unknown, EPSS 0.60%
Caddy MatchHost becomes case-sensitive 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-2026-4541
- https://github.com/caddyserver/caddy/security/advisories/GHSA-x76f-jf84-rqj8
- https://github.com/caddyserver/caddy/commit/eec32a0bb5a11651c6a7b04ce82dc50610f2b27e
- https://github.com/caddyserver/caddy/releases/tag/v2.11.1
CVE-2026-27588 · published · modified · JSON