CVE & CISA-KEV Catalog

CVE-2022-23514

HIGHEPSS 75th pctl
7.5
CVSS v3
NVD

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.

How to fix

Remediation Available
ruby-loofahDebian
Fixed in:2.7.0+dfsg-1+deb11u1CVE-2022-23514
Fixed in:2.19.1-1CVE-2022-23514
Fixed in:2.19.1-1CVE-2022-23514
Fixed in:2.19.1-1CVE-2022-23514

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.69%probability of exploitation in 30 days
75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-1333 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-3364High7.544%-Fix
CVE-2024-8124High7.540%-Fix
CVE-2024-25126Medium5.335%-Fix
CVE-2024-2651Medium6.533%-Fix
CVE-2021-32837High7.529%-Fix
CVE-2024-2829High7.526%-Fix

Common questions

How do I fix CVE-2022-23514?

Upgrade ruby-loofah on debian 11 to 2.7.0+dfsg-1+deb11u1 or later.

Is CVE-2022-23514 being actively exploited?

Not that we know of. CVE-2022-23514 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 75% of all scored CVEs.

How severe is CVE-2022-23514?

CVE-2022-23514 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-23514 affect?

Published advisories record a fix for ruby-loofah (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2022-23514 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.