CVE-2026-52844
caddy: Caddy is an extensible server platform that uses TLS by default
CVE-2026-52844 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-52844, released June 23, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0062
49th percentile
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\secret.txt as outside /private/*, but file_server later resolves the same request path as private\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*. This vulnerability is fixed in 2.11.4.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| caddy · Debian 14 | 2.11.4-1 | DEBIAN-CVE-2026-52844 | Jun 23, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260727T201416-160000.1.1 | OPENSUSE-SU-2026:21551-1 | Aug 10, 2026 |
| govulncheck-vulndb · sles 16.0 | 0.0.20260727T201416-160000.1.1 | SUSE-SU-2026:23227-1 | Aug 10, 2026 |