LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limiter, but the actual output from str.split(pattern).join(replacement) can be quadratically larger when the pattern occurs many times in the input string.
This allows an attacker who controls template content to bypass the memoryLimit DoS protection with approximately 2,500x amplification, potentially causing out-of-memory conditions. This vulnerability is fixed in 10.25.3.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Liquidjs Liquidjs
cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:node.js:*:*
|
— |
10.25.3
|
References 3
https://github.com/harttle/liquidjs/commit/abc058be0f33d6372cd2216f4945183167ab…
security-advisories@github.com
https://github.com/harttle/liquidjs/releases/tag/v10.25.3
security-advisories@github.com
https://github.com/harttle/liquidjs/security/advisories/GHSA-mmg9-6m6j-jqqx
security-advisories@github.com