What’s Vulnerable › Vulnerabilities

CVE-2020-36649: mholt PapaParse papaparse.js redos

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-01-11 · updated 2026-06-17
• Weakness: CWE-1333

Description

A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.

Affected products

• mholt PapaParse: from 5.1.0 before 5.2.0 — fixed in 5.2.0

How to fix

Upgrade to a fixed version: mholt PapaParse 5.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
• https://github.com/mholt/PapaParse/issues/777
• https://github.com/mholt/PapaParse/pull/779
• https://github.com/mholt/PapaParse/releases/tag/5.2.0
• https://vuldb.com/?ctiid.218004
• https://vuldb.com/?id.218004
• https://github.com/mholt/PapaParse/commit/235a12758cd77266d2e98fd715f53536b34ad621
• https://github.com/mholt/PapaParse/issues/777
• https://github.com/mholt/PapaParse/pull/779
• https://github.com/mholt/PapaParse/releases/tag/5.2.0
• https://vuldb.com/?ctiid.218004
• https://vuldb.com/?id.218004

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