CVE-2022-21222

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    CVE-2022-21222

    Published: 30 Sept 2022Last Modified: 12 Aug 2026

    Summary: Regular Expression Denial of Service (ReDoS)

    Details: The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.

    References: https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12, https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21222.json, https://nvd.nist.gov/vuln/detail/CVE-2022-21222, https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -2db00ca221922c5b5131d798614aa043f2f6f80e

    Affected versions

    v2.1.2
    v2.1.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-21222 | CVE-DB