CVE-2018-3712

mediumpriority · track · 27EPSS 0.018 · 78 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.79% (78th) EPSS

CVSS 4 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22US

affected products (3)

Products and version ranges known to be affected.

HackerOne serve node module≤ Versions before 6.4.9enisa_euvdEU
zeit serve< 6.4.9nvdUScpe:2.3:a:zeit:serve:*:*:*:*:*:*:*:*
npm serve< 6.4.9osvUSpkg:npm/serve

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-q2qh-cgc2-qhr3Directory Traversal in serve2018-07-27ghsa · osvUS
Affected versions of `serve` do not properly handle `%2e` (.) and `%2f` (/) characters, and allow the, characters to be used in paths. This can be used to traverse the directory tree and list content of any directory the user running the process has access to. Mitigating factors: This vulnerability only allows listing of directory contents and does not allow reading of arbitrary files. ## Recommendation Update to version 6.4.9 later.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-06-07modified 2026-06-17

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Related entries.

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+12524 more

references (6)

External citations — patches, advisories, analysis.

https://github.com/zeit/serve/pull/316 cnnvd
https://hackerone.com/reports/307666 cnnvd
https://github.com/zeit/serve/pull/316 enisa_euvd
https://hackerone.com/reports/307666 enisa_euvd
https://github.com/zeit/serve/pull/316Vendor Advisorynvd
https://hackerone.com/reports/307666ExploitTechnical Descriptionnvd

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