What is CVE-2022-21680?

CVE-2022-21680 is a high-severity vulnerability in Markedjs Marked, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-01-14.

How severe is CVE-2022-21680?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-21680 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Markedjs Marked

CVE-2022-21680

Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `block.def` may cause catastrophic backtracking against some strings and lead to a regular expression denial of service (ReDoS). Anyone who runs untr…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.007 (72.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Markedjs Marked — versions < 4.0.10

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-21680?: CVE-2022-21680 is a high-severity vulnerability in Markedjs Marked, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-01-14.
How severe is CVE-2022-21680?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-21680 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.