4.2
Medium
CVE-2026-52846 Caddy is an extensible server platform that uses TLS by default
Description
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, Caddy’s stripHTML template function cannot reliably remove all HTML tags from input strings. Certain malformed HTML, such as <<>img src=x onerror=alert()>, can bypass the tag-stripping logic, potentially leaving dangerous content in the output if it is later rendered as HTML. This may allow client-side XSS in cases where untrusted strings are rendered unsafely. This vulnerability is fixed in 2.11.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| caddy 2.11 | earliest → < 2.11.4 | 2.11.4 |
References
- github.com github.com
Timeline
- Published
- Last modified
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The 17 CVEs of caddy →
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