Login Request a demo
High severity · published Dec 14, 2022
CVE-2022-23517
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications
7.5
CVSS
1.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
RH
Rails Html Sanitizers · Rubyonrails
before 1.4.4 · source: NVD
Affected product
DL
Debian Linux
Debian
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23517
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23517
Patch
https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
Third Party Advisory
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
Permissions Required
https://hackerone.com/reports/1684163
Mailing List
https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-111497
Out-of-Bounds Write in Google Brotli Decoder