CVE-2022-21221

    Dashboard / Vulnerabilities / CVE-2022-21221

    CVE-2022-21221

    Published: 17 Mar 2022Last Modified: 21 Oct 2026

    Summary: Directory Traversal

    Details: The package github.com/valyala/fasthttp before 1.34.0 are vulnerable to Directory Traversal via the ServeFile function, due to improper sanitization. It is possible to be exploited by using a backslash %5c character in the path. **Note:** This security issue impacts Windows users only.

    References: https://github.com/valyala/fasthttp/releases/tag/v1.34.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21221.json, https://nvd.nist.gov/vuln/detail/CVE-2022-21221, https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMVALYALAFASTHTTP-2407866, https://github.com/valyala/fasthttp/issues/1226, https://github.com/valyala/fasthttp/commit/15262ecf3c602364639d465daba1e7f3604d00e8, https://github.com/valyala/fasthttp/commit/6b5bc7bb304975147b4af68df54ac214ed2554c1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -59f94a3f7137d0ad215bd262df7082d1e632a1f7

    Affected versions

    v1.33.0

    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-2022-21221 | CVE-DB