CVE-2026-27585
Last modified
CVE-2026-27585 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Caddyserver | Caddy | < 2.11.1 |
References
- https://github.com/caddyserver/caddy/security/advisories/GHSA-4xrr-hq4w-6vf4Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-27585?
How severe is CVE-2026-27585?
How do I fix CVE-2026-27585?
Are you affected by CVE-2026-27585?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST