Directory Traversal vulnerability in serve-lite

published 2023-01-25 3 y ago modified 2026-06-17 4 mo ago also GHSA-5qq4-m6c3-xxmf , EUVD-2023-0343

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits: 0; none known

All versions of the package serve-lite are vulnerable to Directory Traversal due to missing input sanitization or other checks and protections employed to the req.url passed as-is to path.join().

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 19 mo ago (2025-04-01)

Exploit prediction

1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

security.snyk.io https://security.snyk.io/vuln/SNYK-JS-SERVELITE-3149916 referenced PoC, tagged "exploit" by a source, unverified
gist.github.com https://gist.github.com/lirantal/9ccdfda0edcb95e36d07a04b0b6c2db0 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	serve-lite	<=1.1.0	no fix listed

Affected products

n/a serve-lite

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

security.snyk.io /vuln/SNYK-JS-SERVELITE-3149916
web, exploit, third-party-advisory
gist.github.com /lirantal/9ccdfda0edcb95e36d07a04b0b6c2db0
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-21192
advisory
github.com /beenotung/serve-lite
package

Sources

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