CVE-2022-23517
HIGH7.5EPSS 0.30%ruby-rails-html-sanitizer - security update
Published: 12/13/2022Modified: 4/28/2026
Description
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use 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. This issue has been patched in version 1.4.4.
Affected packages (4)
- Debian/ruby-rails-html-sanitizerfrom 0, < 1.3.0-1+deb11u1
- Debian/ruby-rails-html-sanitizerfrom 0, < 1.0.4-1+deb10u2
- Debian/ruby-rails-html-sanitizerfrom 0, < 1.3.0-1+deb11u1
- RubyGems/rails-html-sanitizerfrom 0, < 1.4.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2022-23517
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2022-23517
- PATCHhttps://github.com/rails/rails-html-sanitizer
- WEBhttps://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
- WEBhttps://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23517.yml
- WEBhttps://hackerone.com/reports/1684163
- WEBhttps://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
- WEBhttps://lists.debian.org/debian-lts-announce/2024/09/msg00045.html