# CVE-2026-55575: LiquidJS memory limit bypass in pop array filter

Source: https://junglewise.ai/threats/cve-2026-55575-liquidjs-memory-limit-bypass-in-pop-array-filter  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-08. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-55575 · Severity: high · CVSS 4 · Published 2026-07-08

LiquidJS is a popular template engine used to generate dynamic web content. A flaw in its 'pop' filter allows it to bypass memory safety limits, meaning an attacker can provide a specially crafted large list that consumes excessive server memory. This can lead to a denial-of-service (DoS) condition where the server crashes or becomes unresponsive, affecting business operations and availability.

Technologies: [liquidjs (npm)](https://junglewise.ai/threats/technologies/liquidjs). Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-55575 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55575 being exploited in the wild.

**How severe is CVE-2026-55575?** High severity, with a CVSS score of 4, published 8 July 2026.

**Which products and versions are affected?** liquidjs (npm) <= 10.27.0, SEMVER:introduced=0,fixed=10.27.1.

**Is there a fix for CVE-2026-55575?** Yes. liquidjs (npm): upgrade to 10.27.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-55575 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-55575?** Check whether you run liquidjs (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- liquidjs (npm): upgrade to 10.27.1 or later

  ```sh
  npm install liquidjs@10.27.1
  ```


## Technical details

The 'pop' array filter in 'src/filters/array.ts' fails to call 'this.context.memoryLimit.use()' before performing an O(N) allocation via array cloning. While other array filters like 'shift' or 'slice' correctly account for memory usage against the configured 'memoryLimit', 'pop' bypasses this check entirely. An attacker who can influence the size of an array passed to a template using the 'pop' filter can trigger large allocations that exceed the intended budget. This can lead to process exhaustion and Out-of-Memory (OOM) crashes in Node.js environments. The issue is fixed in version 10.27.1 by adding the missing limit check.

## Affected products

- harttle liquidjs <= 10.27.0

## Identifiers

- CVE-2026-55575
- GHSA-g357-x5c3-c72p

## Timeline

- 2026-07-05: disclosed: Advisory published by maintainer
- 2026-07-08: advisory: NVD publication date
- 2026-07-24: advisory: GitHub Advisory Database reviewed date
- 2026-07-24: patched: Version 10.27.1 released

## References

- [https://api.github.com/users/offset](https://api.github.com/users/offset)
- [https://github.com/offset](https://github.com/offset)
- [https://api.github.com/users/offset/gists%7B/gist_id%7D](https://api.github.com/users/offset/gists%7B/gist_id%7D)
- [https://api.github.com/users/offset/repos](https://api.github.com/users/offset/repos)
- [https://avatars.githubusercontent.com/u/114768995?v=4](https://avatars.githubusercontent.com/u/114768995?v=4)
- [https://api.github.com/users/offset/events%7B/privacy%7D](https://api.github.com/users/offset/events%7B/privacy%7D)

## Related threats

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- [LiquidJS infinite loop in strip_html filter](https://junglewise.ai/threats/cve-2026-61556-liquidjs-infinite-loop-in-strip-html-filter)
- [LiquidJS remote code execution via crafted templates](https://junglewise.ai/threats/cve-2026-45618-liquidjs-remote-code-execution-via-crafted-templates)
- [LiquidJS ReDoS in strip_html filter](https://junglewise.ai/threats/cve-2026-45617-liquidjs-redos-in-strip-html-filter)