Path Traversal in Fasthttp Project
CVE-2022-21221
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.025 (83.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Fasthttp_project Fasthttp
- Microsoft Windows
- N/a Github.com/valyala/fasthttp — versions unspecified
Weakness classification (CWE)
References
- report@snyk.io (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2022-21221?
- CVE-2022-21221 is a medium-severity vulnerability in Fasthttp Project, classified under Path Traversal. CVSS score: 5.9/10. Published 2022-03-17.
- How severe is CVE-2022-21221?
- Medium severity. CVSS v3 base score is 5.9 out of 10.