CVE-2026-69222

LiquidJS versions prior to 10.27.2 have a memory-limit accounting defect in the join and array_to_sentence_string filters: they bill complexity by element count rather than output string length, so a crafted template can allocate toward V8's memory limits and crash the process. Exploitation requi...

CVE-2026-69222 LiquidJS: Uncontrolled Resource Consumption in `join` filter allows template authors to bypass `memoryLimit` and crash the process

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.27.2, the join filter in src/filters/array.ts computes complexity from array.length and separator length instead of the total string length produced by array.joinsep. The concat filter can cheaply doub...