CVE-2022-23514

high

Published 2022-12-13 · Modified 2025-11-04

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CVSS v3

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

CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

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.

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.19.1-1`
sid	Fixed	`2.19.1-1`
forky	Fixed	`2.19.1-1`
bullseye	Fixed	`2.7.0+dfsg-1+deb11u1`
bookworm	Fixed	`2.19.1-1`

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

Package impact

Ecosystem	Package	Vulnerable	Fixed
RubyGems	loofah	`<>= 2.19.1`	`>= 2.19.1`
RubyGems	loofah	`<2.19.1`	`2.19.1`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.