What is CVE-2023-26104?

CVE-2023-26104 is a high-severity vulnerability in Lite-Web-Server Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-02-25.

How severe is CVE-2023-26104?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Lite-Web-Server Project

CVE-2023-26104

All versions of the package lite-web-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.

Vulnerability class: DoS (Denial of Service)

Published 2023-02-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Lite-Web-Server Project
Lite-Web-Server — versions 0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security.snyk.io/vuln/SNYK-JS-LITEWEBSERVER-3153703 (Third Party Advisory)
github.com/chasyumen/lite-web-server/blob/main/src/WebServer.js#L274 (Broken Link)
gist.github.com/lirantal/637520812da06fffb91dd86d02ff6bde (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-26104?: CVE-2023-26104 is a high-severity vulnerability in Lite-Web-Server Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-02-25.
How severe is CVE-2023-26104?: High severity. CVSS v3 base score is 7.5 out of 10.