Go/github.com/caddyserver/caddy/v2 CVE-2026-52845: high 8.1, EPSS 0.45%
Caddy: FastCGI header normalization bypass in `forward_auth copy_headers`
Action: Upgrade github.com/caddyserver/caddy/v2 to 2.11.4 or later.
go get github.com/caddyserver/caddy/v2@v2.11.4Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.4 | - |
Fixed versions
| 2.11.4 |
Sources
- osv: GHSA-f59h-q822-g45g
- https://github.com/caddyserver/caddy/security/advisories/GHSA-f59h-q822-g45g
- https://nvd.nist.gov/vuln/detail/CVE-2026-52845
- https://access.redhat.com/security/cve/CVE-2026-52845
- https://bugzilla.redhat.com/show_bug.cgi?id=2491907
- https://github.com/caddyserver/caddy
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52845.json
CVE-2026-52845 · published · modified · JSON