CVE-2026-52846

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.

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Produits concernés

• caddyserver caddy

Scores CVSS

Faiblesses (CWE)

• CWE-116

Références

• https://github.com/caddyserver/caddy/security/advisories/GHSA-vcc4-2c75-vc9v ExploitThird Party Advisory
• https://github.com/caddyserver/caddy/security/advisories/GHSA-vcc4-2c75-vc9v ExploitThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories