Vulnerability library
Security checkJune 16, 2025

Regular Expression Denial of Service in papaparse

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High severitynpmpapaparse

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Description

Versions of papaparse prior to 5.2.0 are vulnerable to Regular Expression Denial of Service (ReDos). The parse function contains a malformed regular expression that takes exponentially longer to process non-numerical inputs. This allows attackers to stall systems and lead to Denial of Service.

Recommendation

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

  • Affected version(s): < 5.2.0
  • Patched version(s): 5.2.0

References

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See something that needs correcting? Let us knowUpdated June 16, 2025