What is CVE-2026-34166?

CVE-2026-34166 is a low-severity vulnerability in Harttle Liquidjs, classified under Uncontrolled Resource Consumption. CVSS score: 3.7/10. Published 2026-04-08.

How severe is CVE-2026-34166?

Low severity. CVSS v3 base score is 3.7 out of 10.

Resource exhaustion in Harttle Liquidjs

CVE-2026-34166

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + patt…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Harttle Liquidjs — versions < 10.25.3
Liquidjs

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-34166?: CVE-2026-34166 is a low-severity vulnerability in Harttle Liquidjs, classified under Uncontrolled Resource Consumption. CVSS score: 3.7/10. Published 2026-04-08.
How severe is CVE-2026-34166?: Low severity. CVSS v3 base score is 3.7 out of 10.