GHSA-rxq3-5249-8hgg
personnummer/python vulnerable to Improper Input Validation
This vulnerability was reported to the personnummer team in June 2020. The slow response was due to locked ownership of some of the affected packages, which caused delays to update packages prior to disclosure.
The vulnerability is determined to be low severity.
Impact
This vulnerability impacts users who rely on the for last digits of personnummer to be a real personnummer.
Patches
The issue have been patched in all repositories. The following versions should be updated to as soon as possible:
C# 3.0.2
D 3.0.1
Dart 3.0.3
Elixir 3.0.0
Go 3.0.1
Java 3.3.0
JavaScript 3.1.0
Kotlin 1.1.0
Lua 3.0.1
PHP 3.0.2
Perl 3.0.0
Python 3.0.2
Ruby 3.0.1
Rust 3.0.0
Scala 3.0.1
Swift 1.0.1
If you are using any of the earlier packages, please update to latest.
Workarounds
The issue arrieses from the regular expression allowing the first three digits in the last four digits of the personnummer to be 000, which is invalid. To mitigate this without upgrading, a check on the last four digits can be made to make sure it's not 000x.
For more information
If you have any questions or comments about this advisory:
- Open an issue in Personnummer Meta
- Email us at Personnummer Email
What each source reports
GitHub AdvisoriesNo score
personnummer/python vulnerable to Improper Input Validation
This vulnerability was reported to the personnummer team in June 2020. The slow response was due to locked ownership of some of the affected packages, which caused delays to update packages prior to disclosure.
The vulnerability is determined to be low severity.
Impact
This vulnerability impacts users who rely on the for last digits of personnummer to be a real personnummer.
Patches
The issue have been patched in all repositories. The following versions should be updated to as soon as possible:
C# 3.0.2
D 3.0.1
Dart 3.0.3
Elixir 3.0.0
Go 3.0.1
Java 3.3.0
JavaScript 3.1.0
Kotlin 1.1.0
Lua 3.0.1
PHP 3.0.2
Perl 3.0.0
Python 3.0.2
Ruby 3.0.1
Rust 3.0.0
Scala 3.0.1
Swift 1.0.1
If you are using any of the earlier packages, please update to latest.
Workarounds
The issue arrieses from the regular expression allowing the first three digits in the last four digits of the personnummer to be 000, which is invalid. To mitigate this without upgrading, a check on the last four digits can be made to make sure it's not 000x.
For more information
If you have any questions or comments about this advisory:
- Open an issue in Personnummer Meta
- Email us at Personnummer Email
- Record
GHSA-rxq3-5249-8hgg- Updated
- 2026-11-02
OSVNo score
personnummer/python vulnerable to Improper Input Validation
This vulnerability was reported to the personnummer team in June 2020. The slow response was due to locked ownership of some of the affected packages, which caused delays to update packages prior to disclosure.
The vulnerability is determined to be low severity.
Impact
This vulnerability impacts users who rely on the for last digits of personnummer to be a real personnummer.
Patches
The issue have been patched in all repositories. The following versions should be updated to as soon as possible:
C# 3.0.2
D 3.0.1
Dart 3.0.3
Elixir 3.0.0
Go 3.0.1
Java 3.3.0
JavaScript 3.1.0
Kotlin 1.1.0
Lua 3.0.1
PHP 3.0.2
Perl 3.0.0
Python 3.0.2
Ruby 3.0.1
Rust 3.0.0
Scala 3.0.1
Swift 1.0.1
If you are using any of the earlier packages, please update to latest.
Workarounds
The issue arrieses from the regular expression allowing the first three digits in the last four digits of the personnummer to be 000, which is invalid. To mitigate this without upgrading, a check on the last four digits can be made to make sure it's not 000x.
For more information
If you have any questions or comments about this advisory:
- Open an issue in Personnummer Meta
- Email us at Personnummer Email
- Record
GHSA-rxq3-5249-8hgg- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
personnummerPyPI | before 3.0.2 | 3.0.2 |
personnummerPyPI | before 3.0.2, plus listed versions 1.0.01.0.11.0.21.1.03.0.03.0.1 | 3.0.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-rxq3-5249-8hgg is a vulnerability with no CVSS score yet in personnummer, published September 9, 2020. No source lists public exploit code. Fixed in personnummer 3.0.2.