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EUVD-2026-258330

fkie_cve-2022-23514

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.

GHSA-486f-hjj9-9vhh — Inefficient Regular Expression Complexity in Loofah

Affected: RubyGems: loofah

## Summary

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.

## Mitigation

Upgrade to Loofah `>= 2.19.1`.

## Severity

The Loofah maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

## References

- [CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)](https://cwe.mitre.org/data/definitions/1333.html) - https://hackerone.com/reports/1684163

## Credit

This vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).

gsd-2022-23514

openSUSE-SU-2024:12768-1 — ruby3.1-rubygem-loofah-2.19.1-1.1 on GA media

ruby3.1-rubygem-loofah-2.19.1-1.1 on GA media

RHSA-2023:2097 — Red Hat Security Advisory: Satellite 6.13 Release

jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode SnakeYaml: Constructor Deserialization Remote Code Execution rubygem-actionpack: Possible cross-site scripting vulnerability in Action Pack rubygem-loofah: inefficient regular expression leading to denial of service rubygem-loofah: Improper neutralization of data URIs leading to Cross Site Scripting rubygem-loofah: Uncontrolled Recursion leading to denial of service rubygem-rails-html-sanitizer: Inefficient Regular Expression leading to denial of service rubygem-rails-html-sanitizer: Improper neutralization of data URIs leading to Cross site scripting rubygem-rails-html-sanitizer: Cross site scripting vulnerability with certain configurations rubygem-rails-html-sanitizer: Cross site scripting vulnerability with certain configurations snakeyaml: Denial of Service due to missing nested depth limitation for collections tfm-rubygem-actionview: Possible cross-site scripting vulnerability in Action View tag helpers rubygem-tzinfo: arbitrary code execution activerecord: Possible RCE escalation bug with Serialized Columns in Active Record apache-commons-configuration: Apache Commons Configuration insecure interpolation defaults snakeyaml: Uncaught exception in org.yaml.snakeyaml.composer.Composer.composeSequenceNode snakeyaml: Uncaught exception in org.yaml.snakeyaml.constructor.BaseConstructor.constructObject snakeyaml: Uncaught exception in java.base/java.util.regex.Pattern$Ques.match snakeyaml: Uncaug…

SUSE-SU-2023:1657-1 — Security update for rubygem-loofah

Security update for rubygem-loofah

UBUNTU-CVE-2022-23514

Affected: Ubuntu:16.04:LTS: ruby-loofah, Ubuntu:18.04:LTS: ruby-loofah, Ubuntu:20.04:LTS: ruby-loofah, Ubuntu:22.04:LTS: ruby-loofah

WID-SEC-W-2023-1143 — Red Hat Satellite: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Satellite ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, einen Cross-Site-Scripting-Angriff durchzuführen oder einen Denial of Service Zustand herbeizuführen.