CVE-2021-4306: A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7

Routine

LOW 3.5UPGRADE

CVE-2021-4306 is a low-severity flaw (CVSS 3.5) affecting terminal-kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7. Affected is an unknown function. The manipulation leads to inefficient regular expression complexity. Upgrading to version 2.1.8 is able to address this issue. The name of the patch is a2e446cc3927b559d0281683feb9b821e83b758c. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217620.

Why this priority

No elevated risk signals yet

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	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-1333
Published	2023-01-07
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: terminal-kit project

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

Am I affected?

Timeline

2023-01-07 17:15 UTCPublished CVE record published
2026-06-17 04:19 UTCUpdated Record last modified

terminal-kit project terminal-kit UPGRADE

Affected: < 2.1.8

Fixed in: 2.1.8

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls terminal-kit

2. UPGRADE to 2.1.8

npm install terminal-kit@">=2.1.8"

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-2021-4306?

terminal-kit: upgrade to 2.1.8. Exact commands for each OS are on this page.

Is CVE-2021-4306 being exploited?

CVE-2021-4306 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-2021-4306 affect?

CVE-2021-4306 affects terminal-kit. Severity is low (CVSS 3.5). A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7. Affected is an unknown function. The manipulation leads to inefficient regular expression complexity. Upgrading to version 2.1.8 is able to addres

How urgent is CVE-2021-4306?

Priority 28/100. No elevated risk signals yet.

References

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