CVE-2022-34037

    Dashboard / Vulnerabilities / CVE-2022-34037

    CVE-2022-34037

    Published: 22 Jul 2022Last Modified: 12 Aug 2026

    Summary:

    Details: An out-of-bounds read in the rewrite function at /modules/caddyhttp/rewrite/rewrite.go in Caddy v2.5.1 allows attackers to cause a Denial of Service (DoS) via a crafted URI. Note: This has been disputed as a bug, not a security vulnerability, in the Caddy web server that emerged when an administrator's bad configuration containing a malformed request URI caused the server to return an empty reply instead of a valid HTTP response to the client.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/34xxx/CVE-2022-34037.json, https://nvd.nist.gov/vuln/detail/CVE-2022-34037, https://github.com/caddyserver/caddy/issues/4775, https://github.com/caddyserver/caddy/issues/4775#issuecomment-1203388116

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- f7be0ee10131f25620a2f64af7e3ded43eae2049
    Fixed -None

    Affected versions

    2.5.1

    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
    CVE-2022-34037 | CVE-DB