CVE-2022-21670

Public Exploit
Uncontrolled Resource Consumption in markdown-it

Description

markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.57%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: markdown-it markdown-it
Published at:
Updated at:

References

Link Tags
https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c third party advisory exploit
https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-21670?
CVE-2022-21670 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21670?
To fix CVE-2022-21670, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21670 being actively exploited in the wild?
It is possible that CVE-2022-21670 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21670?
CVE-2022-21670 affects markdown-it markdown-it.
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