CVE-2021-23382
CVSS v3
7.5
HIGH
EPSS Score
2.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \\/\\*\\s* sourceMappingURL=(.*).
Technical details
- Published
- 2021-04-26
Frequently asked questions
What is CVE-2021-23382?
The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \\/\\*\\s* sourceMappingURL=(.*).
Is CVE-2021-23382 actively exploited?
Active exploitation of CVE-2021-23382 has not been confirmed. Its EPSS score was 2.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23382?
CVE-2021-23382 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-23382 affecting your environment?
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