CVE-2023-22467

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 27% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
74.6%
KEV
Not listed

Published

January 4, 2023

Last Modified

November 21, 2024

References (12)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
luxon—3.2.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-12 05:45 UTCEPSS rescore
  2. 2026-07-12 05:45 UTCEPSS rescore
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  20. 2026-06-28 09:22 UTCOSV refresh
  21. 2026-06-28 04:54 UTCEPSS rescore
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  11. 2026-06-19 19:24 UTCEPSS rescore
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  23. 2026-06-12 23:10 UTCEPSS rescore
  24. 2026-06-11 13:59 UTCEPSS rescore
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  26. 2026-06-10 22:17 UTCEPSS rescore
  27. 2026-06-10 19:47 UTCOSV refresh
  28. 2026-06-10 13:21 UTCEPSS rescore
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  43. 2026-06-02 20:12 UTCEPSS rescore
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  46. 2026-06-01 13:51 UTCEPSS rescore
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  48. 2026-05-31 22:29 UTCEPSS rescore
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  53. 2026-05-29 13:43 UTCEPSS rescore
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  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-25 09:18 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-22467?
CVE-2023-22467 is a high vulnerability published on January 4, 2023. 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…
When was CVE-2023-22467 disclosed?
CVE-2023-22467 was first published in the National Vulnerability Database on January 4, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-22467 actively exploited?
CVE-2023-22467 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-22467?
CVE-2023-22467 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2023-22467?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-22467, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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