CVE-2018-3718
vercel/serve allows access to restricted files if filename is URL encoded.
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
CVE-2018-3718- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-177
- Updated
- 2026-11-02
CVE List No score
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
CVE-2018-3718- Weakness
- CWE-177
- Updated
- 2026-11-02
EUVDEUVD-2021-1580 No score
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
EUVD-2021-1580- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5rc4-8qqh-vq7f
vercel/serve allows access to restricted files if filename is URL encoded.
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
GHSA-5rc4-8qqh-vq7f- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-177
- Updated
- 2026-11-02
OSV
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
CVE-2018-3718- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-5rc4-8qqh-vq7f
vercel/serve allows access to restricted files if filename is URL encoded.
serve node module suffers from Improper Handling of URL Encoding by permitting access to ignored files if a filename is URL encoded.
- Record
GHSA-5rc4-8qqh-vq7f- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-177
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
servenpm |
before 6.5.2 | 6.5.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-3718 is a medium vulnerability (CVSS 5.3) in Hackerone Serve Node Module, published June 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. Fixed in serve 6.5.2.