Inefficient Regular Expression Complexity in Loofah
Published: December 13, 2022
SECURITY IDENTIFIERS
- CVE: CVE-2022-23514 (NVD)
- GHSA: GHSA-486f-hjj9-9vhh
- Vendor Advisory: https://github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh
GEM
SEVERITY
CVSS v3.x: 7.5 (High)
PATCHED VERSIONS
>= 2.19.1
DESCRIPTION
Summary
Loofah < 2.19.1 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.
Mitigation
Upgrade to Loofah >= 2.19.1.