GHSA-486f-hjj9-9vhh

Suggest an improvement
Source
https://github.com/advisories/GHSA-486f-hjj9-9vhh
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-486f-hjj9-9vhh/GHSA-486f-hjj9-9vhh.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-486f-hjj9-9vhh
Aliases
Published
2022-12-13T17:36:28Z
Modified
2025-11-04T17:02:26.327464Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Inefficient Regular Expression Complexity in Loofah
Details

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).

References

Credit

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

Database specific 
{
    "cwe_ids": [
        "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-13T17:36:28Z",
    "severity": "HIGH",
    "nvd_published_at": "2022-12-14T14:15:00Z"
}
References

Affected packages

RubyGems / loofah

Package

Name
loofah
Purl
pkg:gem/loofah

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.19.1

Affected versions

0.*

0.2.0
0.2.1
0.2.2
0.3.0
0.3.1
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.6
0.4.7

1.*

1.0.0.beta.1
1.0.0
1.1.0
1.2.0
1.2.1

2.*

2.0.0
2.0.1
2.0.2
2.0.3
2.1.0.rc1
2.1.0.rc2
2.1.0
2.1.1
2.2.0
2.2.1
2.2.2
2.2.3
2.3.0
2.3.1
2.4.0
2.5.0
2.6.0
2.7.0
2.8.0
2.9.0
2.9.1
2.10.0
2.11.0
2.12.0
2.13.0
2.14.0
2.15.0
2.16.0
2.17.0
2.18.0
2.19.0