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9.8
Caddy server could be exploited to bypass security
published 1 month ago
Summary
The Caddy web server package may contain a weakness that could let attackers interfere with its secure communications. This could affect any system running Caddy, potentially exposing data or services. Update Caddy to the latest version or apply the vendor’s recommended patch as soon as possible.
What to do
- Update cleanstart caddy to version 2.11.4-r0.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| CleanStart | cleanstart | caddy |
< 2.11.4-r0 Fix: upgrade to 2.11.4-r0
|
Original advisory text
Caddy is an extensible server platform that uses TLS by default
Security vulnerability affects the caddy package. Caddy is an extensible server platform that uses TLS by default.
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker full control (estimated)
Timeline
Published20 Sep 2026
Updated20 Sep 2026
First seen20 Sep 2026
Sources
CLEANSTART-2026-UL03599 · OSV
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