CVE-2022-23517

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

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.

Predictions

Exploit likelihood

30%

Patch ETA

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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

OS	Version	Status	Fixed in
rocky	8	fixed
sles		affected
debian	bookworm	fixed	`1.4.4-1`
debian	bullseye	fixed	`1.3.0-1+deb11u1`
debian	forky	fixed	`1.4.4-1`
debian	sid	fixed	`1.4.4-1`
debian	trixie	fixed	`1.4.4-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
RubyGems	rails-html-sanitizer	`<>= 1.4.4`	`>= 1.4.4`
RubyGems	rails-html-sanitizer	`<1.4.4`	`1.4.4`

References

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

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