Memory Allocation Flaw in LiquidJS Template Engine Affects Shopify and GitHub Pages
CVE-2026-69222

7.5HIGH

Key Information:

Vendor

Harttle

Status
Liquidjs
Vendor
CVE Published:
19 August 2026

What is CVE-2026-69222?

The LiquidJS template engine, used with Shopify and GitHub Pages, has a critical issue in its join and array_to_sentence_string filters. Prior to version 10.27.2, these filters improperly computed memory requirements based on incorrect parameters, allowing crafted templates to allocate excessive memory and potentially crash the application. This vulnerability permits templates to exceed predefined memory limits, significantly impacting system stability and performance. Users are encouraged to upgrade to LiquidJS version 10.27.2 or later to mitigate these risks.

Affected Version(s)

liquidjs < 10.27.2

References

https://github.com/harttle/liquidjs/security/advisories/G...
x_refsource_CONFIRM
https://github.com/harttle/liquidjs/pull/925
x_refsource_MISC
https://github.com/harttle/liquidjs/commit/7ab49f999ac045...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.