CVE-2026-101275 - Vulnerability Details - OpenCVE

Our payment integration with Adyen did not properly validate payment status responses. An attacker could use a successful payment status response from one payment and supply it to the system for a different payment, gaining access to multiple valid tickets with only one payment.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

pretix

pretix-adyen

unaffected

Version	Status	Constraints
`0`	affected	< 1.5.4

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://pretix.eu/about/en/blog/20261110-adyen/

History

Tue, 10 Nov 2026 12:30:00 +0000

Type	Values Removed	Values Added
Description		Our payment integration with Adyen did not properly validate payment status responses. An attacker could use a successful payment status response from one payment and supply it to the system for a different payment, gaining access to multiple valid tickets with only one payment.
Title		Insufficient validation of payment status in pretix-adyen
References		https://pretix.eu/about/en/blog/20261110-adyen/
Metrics		cvssV4_0 `{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: pretix

Published: 2026-11-10T12:00:19.011Z

Updated: 2026-11-10T12:00:19.011Z

Reserved: 2026-09-28T11:48:56.321Z

Link: CVE-2026-101275

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-11-10T12:17:16.073

Modified: 2026-11-10T12:17:16.073

Link: CVE-2026-101275

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

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