CVE-2026-101273 Details
Description
Some of our API endpoints allowed to create order payments referencing a gift card by using the auto-incremented internal ID. This ID was not checked and allowed creating payments that reference gift cards from different organizers and thereby obtaining their secret. The gift card is not charged in this case, but by then triggering a refund on the payment, one can increase the value of the gift card.
A vulnerability exists in some API endpoints of Pretix that handle order payments with gift cards. The issue arises because these endpoints use an auto-incremented internal ID to reference gift cards, which is not properly validated. This lack of validation allows payments to be created that reference gift cards from different organizers, potentially exposing their secrets. Although the gift card is not charged, the vulnerability can be exploited by triggering a refund on the payment, thereby increasing the gift card's value.
Users are advised to update to Pretix versions 2026.8.1, 2026.7.3, or 2026.6.4, all of which include the necessary fix. For those using the Pretix Hosted service, the vulnerability has already been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 28, 2026CISA-ADP
Assessed Nov 5, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://pretix.eu/about/en/blog/20261028-release-2026-8-1/ | rami.io | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| pretix | >= 2026, < 2026.8.1 >= 2026, < 2026.7.3 >= 2026, < 2026.6.4 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 5, 2026 | CVE Modified | CISA-ADP |
| Oct 28, 2026 | New CVE Received | rami.io |