CVE-2020-6836: grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary cod

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-6836 is a critical-severity flaw (CVSS 9.8) affecting hot-formula-parser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection. The package fails to sanitize values passed to the parse function and concatenates them in an eval call. If a value of the formula is taken from user-controlled input, it may allow attackers to run arbitrary commands on the server.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-94
Published	2020-01-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hot-formula-parser project

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

Am I affected?

Timeline

2020-01-11 01:15 UTCPublished CVE record published
2026-06-17 03:23 UTCUpdated Record last modified

hot-formula-parser project hot-formula-parser UPGRADE

Affected: < 3.0.1

Fixed in: 3.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls hot-formula-parser

2. UPGRADE to 3.0.1

npm install hot-formula-parser@">=3.0.1"

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-2020-6836?

hot-formula-parser: upgrade to 3.0.1. Exact commands for each OS are on this page.

Is CVE-2020-6836 being exploited?

CVE-2020-6836 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-2020-6836 affect?

CVE-2020-6836 affects hot-formula-parser. Severity is critical (CVSS 9.8). grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection. The package fails to sanitize values passed to the parse function and concatenates them in an eval call. If a value o

How urgent is CVE-2020-6836?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Node.js vulnerabilities

References

← Back to latest CVEs