harttle liquidjs up to 10.25.2 GitHub Page resource consumption

Summaryinfo

A vulnerability identified as problematic has been detected in harttle liquidjs up to 10.25.2. This vulnerability affects unknown code of the component GitHub Page. Performing a manipulation results in resource consumption. This vulnerability is reported as CVE-2026-34166. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in harttle liquidjs up to 10.25.2. This affects some unknown functionality of the component GitHub Page. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-34166 since 03/25/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 10.25.3 eliminates this vulnerability.

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Productinfo

Vendor

• harttle

Name

• liquidjs

Version

• 10.25.0
• 10.25.1
• 10.25.2

Website

• Product: https://github.com/harttle/liquidjs/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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