CVE-2026-5600

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Summary

CVECVE-2026-5600
StatePUBLISHED
Assignerrami.io
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-08 13:16:43 UTC
Updated2026-04-08 21:26:13 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 5.5 MEDIUM from 655498c3-6ec5-4f0b-aea6-853b334d05a6

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000130000 probability, percentile 0.019320000 (date 2026-04-10)

Problem Types: CWE-653 | CWE-653 CWE-653 Improper isolation or compartmentalization

VersionSourceTypeScoreSeverityVector
4.0655498c3-6ec5-4f0b-aea6-853b334d05a6Secondary5.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS5.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pretix Pretix affected 2025.10.0 2026.1.2 python Not specified
CNA Pretix Pretix affected 2026.2.0 2026.2.1 python Not specified
CNA Pretix Pretix affected 2026.3.0 2026.3.1 python Not specified

References

ReferenceSourceLinkTags
pretix.eu/about/en/blog/20260408-release-2026-3-1 655498c3-6ec5-4f0b-aea6-853b334d05a6 pretix.eu
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Pratik Karan (en)

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