Unauthorized File Access in harp

published 2019-05-10 7 y ago modified 2026-06-17 4 mo ago also GHSA-6fmm-47qc-p4m4 , EUVD-2019-0510

cvss: 5.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

Path traversal using symlink in npm harp module versions <= 0.29.0.

Patch / fix

fixed in 1

npm harp 0.40.3

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/530289 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	harp	<0.40.3	0.40.3

Affected products

n/a harp

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-59 Improper Link Resolution Before File Access

References

hackerone.com /reports/530289
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2019-5438
advisory
npmjs.com /advisories/816
web

Sources

CVE List CVE-2019-5438
GitHub Advisory GHSA-6fmm-47qc-p4m4
NVD CVE-2019-5438

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary