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    CVE-2026-45692

    Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3.

    Published:Jun 23, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 23, 2026
    EPSS Score:0.00138
    CVSS Score:5.4

    Affected Products

    Vendor
    Caddyserver
    Product
    Caddy

    Exploits

    https://github.com/caddyserver/caddy/security/advisories/GHSA-x5w9-xh9r-mvfchttps://github.com/caddyserver/caddy/security/advisories/GHSA-x5w9-xh9r-mvfc

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-27588 (CVSS 7.7) — Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `host` …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High