CVE-2021-3801

6.5 mediumEPSS 1.0%

Medium (6.5) in prismjs prism. EPSS 1.0% chance of exploitation in the next 30 days. Fixed in prismjs 1.25.0.

prism is vulnerable to Inefficient Regular Expression Complexity

Severity

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-1333
Published: 2021-09-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-hqhp-5p83-hx96	npm	prismjs	<1.25.0	1.25.0