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prismjs Regular Expression Denial of Service vulnerability

Moderate severity GitHub Reviewed Published Sep 20, 2021 to the GitHub Advisory Database • Updated Jan 29, 2023

Package

npm prismjs (npm)

Affected versions

< 1.25.0

Patched versions

1.25.0

Description

Prism is a syntax highlighting library. The prismjs package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide a crafted HTML comment as input may cause an application to consume an excessive amount of CPU.

References

Published by the National Vulnerability Database Sep 15, 2021
Reviewed Sep 16, 2021
Published to the GitHub Advisory Database Sep 20, 2021
Last updated Jan 29, 2023

Severity

Moderate
6.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2021-3801

GHSA ID

GHSA-hqhp-5p83-hx96

Source code

Checking history
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