Vulnerability library
Security checkAugust 13, 2026

Quasar: Prototype pollution in the extend() utility

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Medium severitynpmquasar

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Description

[email protected], the latest published version at the time of testing, appears to be vulnerable to prototype pollution through the public extend() utility exported from the package root.

Recommendation

Update the quasar package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 2.21.4
  • Patched version(s): 2.22.0

References

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Related Issues

See something that needs correcting? Let us knowUpdated August 13, 2026