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.test.osv.dev/v1/vulns/GHSA-486f-hjj9-9vhh
Aliases
Published
2022-12-13T17:36:28Z
Modified
2025-11-05T00:52:37.871699Z
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,
    "nvd_published_at": "2022-12-14T14:15:00Z",
    "severity": "HIGH",
    "github_reviewed_at": "2022-12-13T17:36:28Z"
}
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

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-486f-hjj9-9vhh/GHSA-486f-hjj9-9vhh.json"