CVE-2018-3712

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-06-07 · updated 2026-06-17
Weakness: CWE-22

Description

serve node module before 6.4.9 suffers from a Path Traversal vulnerability due to not handling %2e (.) and %2f (/) and allowing them in paths, which allows a malicious user to view the contents of any directory with known path.

Affected products

serve: before 6.4.9 — fixed in 6.4.9

How to fix

Upgrade to a fixed version: serve 6.4.9. Check the vendor advisory for mitigations.

References

https://github.com/zeit/serve/pull/316
https://hackerone.com/reports/307666
https://github.com/zeit/serve/pull/316
https://hackerone.com/reports/307666

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