What’s Vulnerable › Vulnerabilities

CVE-2026-55575: LiquidJS: `pop` filter bypasses `memoryLimit` accounting that its array-filter siblings enforce

• Severity: high (CVSS 8.2 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-10-25
• Weakness: CWE-770

Description

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.27.1, the pop array filter at src/filters/array.ts allocated a full clone of its input array via [...toArray(v)] without calling this.context.memoryLimit.use(...), allowing a template render such as {{ huge_array | pop }} to allocate an O(N) clone of an attacker-influenced array outside the configured memoryLimit budget. This issue is fixed in version 10.27.1.

Affected products

• harttle liquidjs: before 10.27.1

References

• https://github.com/harttle/liquidjs/commit/8a0c74a7fcb1671aa1dcb71ec82ba0602dc90d04
• https://github.com/harttle/liquidjs/pull/907
• https://github.com/harttle/liquidjs/releases/tag/v10.27.1
• https://github.com/harttle/liquidjs/security/advisories/GHSA-g357-x5c3-c72p
• https://github.com/harttle/liquidjs/security/advisories/GHSA-g357-x5c3-c72p

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