Is CVE-2026-39412 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-39412 being exploited in the wild.

How severe is CVE-2026-39412?

Medium severity, with a CVSS score of 5.3, published 8 April 2026.

Which products and versions are affected?

liquidjs (npm) SEMVER:introduced=0,fixed=10.25.4.

Is there a fix for CVE-2026-39412?

Yes. liquidjs (npm): upgrade to 10.25.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-39412 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-39412?

Check whether you run liquidjs (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-39412: LiquidJS information disclosure via sort_natural filter bypass

CVE-2026-39412 · Severity: medium · CVSS 5.3 · Published 2026-04-08

LiquidJS is a template engine used to generate web content, similar to those used by Shopify and GitHub Pages. A security flaw in its sorting filters allows unauthorized users to view sensitive internal data, such as API keys or tokens, that should be protected. This is particularly dangerous for service providers who host multiple customers on the same system, as one user could potentially see another's private information.

Technologies: liquidjs (npm). Vendors: npm.

Quick answers

Is CVE-2026-39412 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-39412 being exploited in the wild.
How severe is CVE-2026-39412?: Medium severity, with a CVSS score of 5.3, published 8 April 2026.
Which products and versions are affected?: liquidjs (npm) SEMVER:introduced=0,fixed=10.25.4.
Is there a fix for CVE-2026-39412?: Yes. liquidjs (npm): upgrade to 10.25.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-39412 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-39412?: Check whether you run liquidjs (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

liquidjs (npm): upgrade to 10.25.4 or later
```
npm install liquidjs@10.25.4
```

Technical details

A vulnerability exists in LiquidJS where the 'sort' and 'sort_natural' filters bypass the 'ownPropertyOnly' security configuration. The root cause is the use of direct bracket notation (lhs[propertyString]) in the array filter implementation, which traverses the JavaScript prototype chain instead of using the library's internal scope-safe property accessors. An attacker with the ability to author templates can exploit this via a sorting side-channel attack to infer the values of inherited prototype properties. This can lead to the disclosure of sensitive information like API keys or internal tokens in multi-tenant environments. The issue is fixed in version 10.25.4 by utilizing the '_getFromScope' helper to enforce property boundaries.

Affected products

harttle liquidjs < 10.25.4

Identifiers

CVE-2026-39412
GHSA-rv5g-f82m-qrvv

Timeline

2026-04-07: patched: Fix committed and version 10.25.4 released.
2026-04-08: disclosed: Security advisory published.

References

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