Vulnerability in Moment Luxon
CVE-2023-22467
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.017 (74.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Moment Luxon — versions >= 1.0.0, < 1.38.1, >= 2.0.0, < 2.5.2, >= 3.0.0, < 3.2.1
- Momentjs Luxon
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Not Applicable)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-22467?
- CVE-2023-22467 is a high-severity vulnerability in Moment Luxon, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2023-01-04.
- How severe is CVE-2023-22467?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-22467 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.