CVE-2026-18029

Our payment integration with GiroCheckout 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.

CVSS

No CVSS.

References

Link	Resource
https://pretix.eu/about/en/blog/20260728-release-2026-6-1/

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-28 11:17

Updated : 2026-07-30 16:43

NVD link : CVE-2026-18029

Mitre link : CVE-2026-18029

CVE.ORG link : CVE-2026-18029

JSON object : View

Products Affected

No product.

CWE

CWE-841

Improper Enforcement of Behavioral Workflow

{"id": "CVE-2026-18029", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18029", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-28T12:31:51.212712Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "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/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "affectedData": [{"vendor": "pretix GmbH", "product": "pretix-girosolution", "versions": [{"status": "affected", "version": "0", "lessThan": "1.0.1", "versionType": "python"}], "packageName": "pretix-girosolution", "collectionURL": "https://marketplace.pretix.eu", "defaultStatus": "unaffected"}]}], "published": "2026-07-28T11:17:03.677", "references": [{"url": "https://pretix.eu/about/en/blog/20260728-release-2026-6-1/", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "description": [{"lang": "en", "value": "CWE-841"}]}], "descriptions": [{"lang": "en", "value": "Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment."}], "lastModified": "2026-07-30T16:43:03.817", "sourceIdentifier": "655498c3-6ec5-4f0b-aea6-853b334d05a6"}

CVE-2026-18029

JSON object

Attach tags to CVE-2026-18029

Attach tags to `CVE-2026-18029`