CVE-2026-33287 is a high-severity denial-of-service vulnerability affecting LiquidJS versions prior to 10.25.1, a JavaScript template engine used in platforms like Shopify and GitHub Pages. The flaw resides in the `replace_first` filter, allowing an unauthenticated attacker to achieve exponential memory amplification (up to 625,000:1) through specially crafted input, leading to system resource exhaustion. Rated 7.5 HIGH on CVSS, this vulnerability has a network attack vector, low attack complexity, and requires no privileges or user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.25.1CPE matchmatch criteria | cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.