CVE-2020-36649: A vulnerability was found in mholt PapaParse up to 5.1.x

Routine

LOW 3.5UPGRADE

CVE-2020-36649 is a low-severity flaw (CVSS 3.5) affecting papaparse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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-2180

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-1333
Published	2023-01-11
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: papaparse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-11 15:15 UTCPublished CVE record published
2026-06-17 03:15 UTCUpdated Record last modified

papaparse papaparse UPGRADE

Affected: >= 5.1.0 and < 5.2.0

Fixed in: 5.2.0

Safe to downgrade to: a release before 5.1.0

1. Check installed version

apt-cache policy papaparse || rpm -q papaparse || papaparse --version

2. UPGRADE to 5.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade papaparse

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade papaparse

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 5.1.0 (Debian / Ubuntu)

apt-cache madison papaparse sudo apt install papaparse=<VERSION_BEFORE_5.1.0> sudo apt-mark hold papaparse

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list papaparse sudo dnf downgrade papaparse-<VERSION_BEFORE_5.1.0> sudo dnf versionlock add papaparse

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-36649?

papaparse: upgrade to 5.2.0. Exact commands for each OS are on this page.

Is CVE-2020-36649 being exploited?

CVE-2020-36649 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-36649 affect?

CVE-2020-36649 affects papaparse. Severity is low (CVSS 3.5). 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 ver

How urgent is CVE-2020-36649?

Priority 35/100. Public exploit reference

References

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