CVE-2026-33287
CVE-2026-33287 · LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern
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LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a back reference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service. Version 10.25.1 patches the issue.
CVSS 7.5 · Élevée · EPSS 0,5%
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Pile logicielle: node