Denial of Service (DoS)

published 2022-12-20 3 y ago modified 2026-06-17 4 mo ago also GHSA-89w7-5q45-r53w , EUVD-2022-7561

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known

All versions of package lite-server are vulnerable to Denial of Service (DoS) when an attacker sends an HTTP request and includes control characters that the decodeURI() function is unable to parse.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-16)

Exploit prediction

1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

security.snyk.io https://security.snyk.io/vuln/SNYK-JS-LITESERVER-3153540 referenced PoC, tagged "exploit" by a source, unverified
security.snyk.io https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-3175617 referenced PoC, tagged "exploit" by a source, unverified
gist.github.com https://gist.github.com/lirantal/832382155e00da92bfd8bb3adea474eb 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:N/I:N/A:H/E:P
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	lite-server	<=2.6.1	no fix listed
maven	org.webjars.npm:lite-server	<=2.2.0	no fix listed

Affected products

n/a lite-server

Classification

Weakness

CWE-20 Improper Input Validation
CWE-400 Uncontrolled Resource Consumption

References

security.snyk.io /vuln/SNYK-JS-LITESERVER-3153540
web, exploit, third-party-advisory
security.snyk.io /vuln/SNYK-JAVA-ORGWEBJARSNPM-3175617
web, exploit, third-party-advisory
gist.github.com /lirantal/832382155e00da92bfd8bb3adea474eb
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-25940
advisory
github.com /johnpapa/lite-server
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