A new API endpoint introduced in pretix 2025 that is supposed to
A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those they should not have access to.
These records contain information on the time and result of every ticket scan as well as the ID of the matched ticket. Example:
{ "id": 123, "successful": true, "error_reason": null, "error_explanation": null, "position": 321, "datetime": "2020-08-23T09:00:00+02:00", "list": 456, "created": "2020-08-23T09:00:00+02:00", "auto_checked_in": false, "gate": null, "device": 1, "device_id": 1, "type": "entry" }
An unauthorized user usually has no way to match these IDs (position) back to individual people.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pretix | >= 2025.10.0, < 2026.1.2, >= 2026.2.0, < 2026.2.1, >= 2026.3.0, < 2026.3.1 | 2026.1.2, 2026.2.1, 2026.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-5600
- https://github.com/pretix/pretix
- https://github.com/pypa/advisory-database/tree/main/vulns/pretix/PYSEC-2026-111.yaml
- https://pretix.eu/about/en/blog/20260408-release-2026-3-1
- https://pretix.eu/about/en/blog/20260408-release-2026-3-1/
- https://github.com/advisories/GHSA-wr8q-c73g-m7gp
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-653- Platform
- Python (PyPI)
- Package
pretix- Disclosed
- 08.04.2026
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wr8q-c73g-m7gp - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-111 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: pretix
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 11
- First → latest
- 03.2023 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 6
- Low 3
Disclosures per year
- 2023: 3
- 2024: 2
- 2025: 3
- 2026: 3
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A new API endpoint introduced in pretix 2025 that is supposed to this entry
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