Vulnerability library
Security checkFebruary 12, 2025

Prototype Pollution in handlebars

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High severitynpmhandlebars

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Description

Versions of handlebars prior to 3.0.8 or 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Objects’ __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.

Recommendation

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

  • Affected version(s): **< 3.0.8 >= 4.0.0, < 4.3.0**
  • Patched version(s): **3.0.8 4.3.0**

References

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See something that needs correcting? Let us knowUpdated February 12, 2025