High severity8.0NVD Advisory· Published May 14, 2021· Updated Jun 17, 2026
CVE-2021-32819
CVE-2021-32819
Description
Squirrelly is a template engine implemented in JavaScript that works out of the box with ExpressJS. Squirrelly mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options remote code execution may be triggered in downstream applications. This issue is fixed in version 9.0.0. For complete details refer to the referenced GHSL-2021-023.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
squirrellynpm | < 9.0.0 | 9.0.0 |
Affected products
3- cpe:2.3:a:squirrelly:squirrelly:8.0.8:*:*:*:*:*:*:*
- Range: 9.0.0
Patches
Vulnerability mechanics
References
7- securitylab.github.com/advisories/GHSL-2021-023-squirrelly/nvdExploitThird Party Advisory
- github.com/advisories/GHSA-q8j6-pwqx-pm96ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-32819ghsaADVISORY
- securitylab.github.com/advisories/GHSL-2021-023-squirrellyghsaADVISORY
- github.com/squirrellyjs/squirrelly/commit/c12418a026f73df645ba927fd29358efe02fed1envdWEB
- github.com/squirrellyjs/squirrelly/commit/dca7a1e7ee91d8a6ffffb655f3f15647486db9danvdWEB
- github.com/squirrellyjs/squirrelly/pull/254nvdWEB
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