Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah >= 2.2.0, < 2.19.1 uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1. Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-3565-1 ruby-loofah security update
Debian DLA Debian DLA DLA-3901-1 ruby-loofah security update
EUVD EUVD EUVD-2022-7493 Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah >= 2.2.0, < 2.19.1 uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1. Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.
Github GHSA Github GHSA GHSA-3x8r-x6xp-q4vm Uncontrolled Recursion in Loofah
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 18 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-18T18:19:45.155Z

Reserved: 2022-01-19T21:23:53.778Z

Link: CVE-2022-23516

cve-icon Vulnrichment

Updated: 2024-08-03T03:43:46.589Z

cve-icon NVD

Status : Modified

Published: 2022-12-14T14:15:10.627

Modified: 2024-11-21T06:48:43.687

Link: CVE-2022-23516

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-12-13T00:00:00Z

Links: CVE-2022-23516 - Bugzilla

cve-icon OpenCVE Enrichment

No data.