Description
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. 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. This issue is patched in version 2.19.1.
Published: 2022-12-14
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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-2022-7500 Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. 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. This issue is patched in version 2.19.1.
Github GHSA Github GHSA GHSA-486f-hjj9-9vhh Inefficient Regular Expression Complexity in Loofah
History

Mon, 03 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

Mon, 21 Apr 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Loofah Project Loofah
Redhat Satellite
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-11-03T21:45:53.018Z

Reserved: 2022-01-19T21:23:53.777Z

Link: CVE-2022-23514

cve-icon Vulnrichment

Updated: 2025-11-03T21:45:53.018Z

cve-icon NVD

Status : Modified

Published: 2022-12-14T14:15:10.477

Modified: 2025-11-03T22:15:55.973

Link: CVE-2022-23514

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2022-23514 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses