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Regular Expression Denial of Service in postcss

Moderate severity GitHub Reviewed Published May 10, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

npm postcss (npm)

Affected versions

>= 7.0.0, < 7.0.36
>= 8.0.0, < 8.2.10

Patched versions

7.0.36
8.2.10

Description

The npm package postcss from 7.0.0 and before versions 7.0.36 and 8.2.10 is vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

References

Published by the National Vulnerability Database Apr 12, 2021
Reviewed May 7, 2021
Published to the GitHub Advisory Database May 10, 2021
Last updated Feb 1, 2023

Severity

Moderate
5.3
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2021-23368

GHSA ID

GHSA-hwj9-h5mp-3pm3

Source code

No known source code
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