CVE-2026-57536 pretix CVE debrief

Who should care

Defenders managing payment systems or integrations with Mollie should assess exposure to this vulnerability and prioritize remediation based on the medium severity and potential impact on payment processing.

Why it matters

CVE-2026-57536 is a medium-severity vulnerability affecting payment integration with Mollie, allowing an attacker to gain access to multiple valid tickets with only one payment. Defenders managing payment systems or integrations with Mollie should assess exposure and prioritize remediation.

• Potential unauthorized access to multiple tickets with a single payment
• Possible impact on payment processing and revenue streams
• Need for verification of payment system configurations and integrations with Mollie
• Potential reputational damage due to payment system vulnerability

Technical summary

The vulnerability is caused by improper validation of payment status responses in the payment integration with Mollie. An attacker can exploit this by supplying a successful payment status response from one payment to the system for a different payment, gaining access to multiple valid tickets with only one payment. This issue affects defenders managing payment systems or integrations with Mollie, who should assess exposure and prioritize remediation based on the medium severity and potential impact on payment processing. The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected systems.

Defensive priority

Defenders should verify payment system configurations and integrations with Mollie, assess exposure to this vulnerability, and prioritize remediation based on the medium severity and potential impact on payment processing.

Recommended defensive actions

• Verify payment system configurations and integrations with Mollie
• Assess exposure to this vulnerability
• Prioritize remediation based on medium severity and potential impact on payment processing
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected systems. However, the vendor and affected products are not clearly identified, limiting the scope of assessment and remediation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.