What is CVE-2022-40082?

CVE-2022-40082 is a high-severity vulnerability in Cloudwego Hertz, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-09-28.

How severe is CVE-2022-40082?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-40082 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Cloudwego Hertz

CVE-2022-40082

Hertz v0.3.0 ws discovered to contain a path traversal vulnerability via the normalizePath function.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-09-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.1th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.001

Affected products

Cloudwego Hertz — versions 0.3.0
Microsoft Windows

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

References

github.com/cloudwego/hertz/issues/228 (Exploit, Third Party Advisory, Issue Tracking)
github.com/cloudwego/hertz/pull/229 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-40082?: CVE-2022-40082 is a high-severity vulnerability in Cloudwego Hertz, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-09-28.
How severe is CVE-2022-40082?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-40082 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.