CVE-2022-21221

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 17, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-21221: High severity, CVSS 7.5 | Vulnix