CVE-2026-5600

Source
https://cve.org/CVERecord?id=CVE-2026-5600
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5600.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5600
Aliases
Published
2026-04-08T12:24:51.602Z
Modified
2026-07-08T08:13:46.000288127Z
Severity
  • 5.5 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
[none]
Details

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, "errorreason": null, "errorexplanation": null, "position": 321, "datetime": "2020-08-23T09:00:00+02:00", "list": 456, "created": "2020-08-23T09:00:00+02:00", "autocheckedin": 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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5600.json",
    "cna_assigner": "rami.io",
    "cwe_ids": [
        "CWE-653"
    ],
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "2025.10.0"
                },
                {
                    "fixed": "2026.1.2"
                },
                {
                    "introduced": "2026.2.0"
                },
                {
                    "fixed": "2026.2.1"
                },
                {
                    "introduced": "2026.3.0"
                },
                {
                    "fixed": "2026.3.1"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/pretix/pretix

Affected ranges

Type
GIT
Repo
https://github.com/pretix/pretix
Events
Database specific
{
    "cpe": "cpe:2.3:a:pretix:pretix:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2025.10.0"
        },
        {
            "fixed": "2026.1.2"
        },
        {
            "introduced": "2026.2.0"
        },
        {
            "fixed": "2026.2.1"
        },
        {
            "introduced": "2026.3.0"
        },
        {
            "fixed": "2026.3.1"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v2025.*
v2025.10.0
v2026.*
v2026.1.0
v2026.1.1
v2026.2.0
v2026.3.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5600.json"