CVE-2023-22467

luxon.js inefficient regular expression complexity vulnerability

Published Jan 4, 2023 CVSS 3.1 · 7.5 High EPSS 1.9% KEV · Not listed
Description
Luxon is a library for working with dates and times in JavaScript. On the 1.x branch prior to 1.38.1, the 2.x branch prior to 2.5.2, and the 3.x branch on 3.2.1, Luxon's `DateTime.fromRFC2822() has quadratic (N^2) complexity on some specific inputs. This causes a noticeable slowdown for inputs with lengths above 10k characters. Users providing untrusted data to this method are therefore vulnerable to (Re)DoS attacks. This issue also appears in Moment as CVE-2022-31129. Versions 1.38.1, 2.5.2, and 3.2.1 contain patches for this issue. As a workaround, limit the length of the input.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-0326 Luxon is a library for working with dates and times in JavaScript. On the 1.x branch prior to 1.38.1, the 2.x branch prior to 2.5.2, and the 3.x branch on 3.2.1, Luxon's `DateTime.fromRFC2822() has quadratic (N^2) complexity on some specific inputs. This causes a noticeable slowdown for inputs with lengths above 10k characters. Users providing untrusted data to this method are therefore vulnerable to (Re)DoS attacks. This issue also appears in Moment as CVE-2022-31129. Versions 1.38.1, 2.5.2, and 3.2.1 contain patches for this issue. As a workaround, limit the length of the input.
Github GHSA Github GHSA GHSA-3xq5-wjfh-ppjc Luxon Inefficient Regular Expression Complexity vulnerability
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00462}

epss

{'score': 0.00468}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 13, 2025, 4:43 PM
Reserved
Dec 29, 2022, 3:00 AM
Status
Modified
Published
Jan 4, 2023, 10:15 PM
Modified
Jun 17, 2026, 5:35 AM
Severity
Moderate
Public date
Jan 4, 2023, 12:00 AM