Medium (5.9) in ssri project ssri. EPSS 1.7% chance of exploitation in the next 30 days. Fixed in ssri 5.2.2.
index.js in the ssri module before 5.2.2 for Node.js is prone to a regular expression denial of service vulnerability in strict mode functionality via a long base64 hash string.
Severity
CVSS 3.0
5.9 medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)