What’s Vulnerable › Vulnerabilities

CVE-2023-22963

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-11 · updated 2026-06-17
• Weakness: CWE-20

Description

The personnummer implementation before 3.0.3 for Dart mishandles numbers in which the last four digits match the ^000[0-9]$ regular expression.

Affected products

• Personnummer: before 3.0.3 — fixed in 3.0.3

How to fix

Upgrade to a fixed version: Personnummer 3.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/advisories/GHSA-4xh4-v2pq-jvhm
• https://github.com/personnummer/dart/security/advisories/GHSA-4xh4-v2pq-jvhm
• https://github.com/advisories/GHSA-4xh4-v2pq-jvhm
• https://github.com/personnummer/dart/security/advisories/GHSA-4xh4-v2pq-jvhm

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