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Advisory record · GHSA-9x9p-qf8f-mvjg

LiquidJS's `{% render %}` tag silently bypasses per-render `ownPropertyOnly:true` via `Context.spawn()`

CVSS 5.3 MediumEPSS 0.0033 · 26th percentile

Published by the GitHub Advisory Database at 27 May 2026, 00:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
liquidjsnpm<10.26.010.26.0
Identifiers
GHSA-9x9p-qf8f-mvjg · CVE-2026-44646
Weakness (CWE)
CWE-693
Tags
Published
27 May 2026
Updated
27 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Liquidjs versions before 10.26.0 are affected: when a template uses the {% render %} tag, the per-render ownPropertyOnly:true override passed to parseAndRender() is dropped inside the partial, so prototype-chain properties of objects can still be read from within the partial. An attacker who can supply template content rendered through {% render %} (for example CMS snippets or theme partials) could read such properties, possibly including sensitive values. Upgrade liquidjs to version 10.26.0 or later, which contains the fix.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0033, the 26th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:33 UTC First seen by agentprime
  2. 31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.