CVE-2026-2415

{"id": "CVE-2026-2415", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.5, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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:L/U:Red", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "RED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "LOW", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-16T11:15:56.047", "references": [{"url": "https://pretix.eu/about/en/blog/20260216-release-2026-1-1/", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "description": [{"lang": "en", "value": "CWE-627"}]}], "descriptions": [{"lang": "en", "value": "Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}\n is used in an email template, it will be replaced with the buyer's \nname for the final email. This mechanism contained two security-relevant\n bugs:\n\n\n\n * \nIt was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.\n This way, an attacker with the ability to control email templates \n(usually every user of the pretix backend) could retrieve sensitive \ninformation from the system configuration, including even database \npasswords or API keys. pretix does include mechanisms to prevent the usage of such \nmalicious placeholders, however due to a mistake in the code, they were \nnot fully effective for the email subject.\n\n\n\n\n * \nPlaceholders in subjects and plain text bodies of emails were \nwrongfully evaluated twice. Therefore, if the first evaluation of a \nplaceholder again contains a placeholder, this second placeholder was \nrendered. This allows the rendering of placeholders controlled by the \nticket buyer, and therefore the exploitation of the first issue as a \nticket buyer. Luckily, the only buyer-controlled placeholder available \nin pretix by default (that is not validated in a way that prevents the \nissue) is {invoice_company}, which is very unusual (but not\n impossible) to be contained in an email subject template. In addition \nto broadening the attack surface of the first issue, this could \ntheoretically also leak information about an order to one of the \nattendees within that order. However, we also consider this scenario \nvery unlikely under typical conditions.\n\n\nOut of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg https://docs.pretix.eu/self-hosting/config/ \u00a0file."}, {"lang": "es", "value": "Los correos electr\u00f3nicos enviados por pretix pueden utilizar marcadores de posici\u00f3n que se llenar\u00e1n con datos del cliente. Por ejemplo, cuando {name} se usa en una plantilla de correo electr\u00f3nico, ser\u00e1 reemplazado con el nombre del comprador para el correo electr\u00f3nico final. Este mecanismo conten\u00eda dos errores relevantes para la seguridad:\n\n* Fue posible exfiltrar informaci\u00f3n sobre el sistema pretix a trav\u00e9s de nombres de marcadores de posici\u00f3n especialmente dise\u00f1ados, como {{event.__init__.__code__.co_filename}}. De esta manera, un atacante con la capacidad de controlar las plantillas de correo electr\u00f3nico (generalmente cada usuario del backend de pretix) podr\u00eda recuperar informaci\u00f3n sensible de la configuraci\u00f3n del sistema, incluyendo incluso contrase\u00f1as de base de datos o claves API. pretix s\u00ed incluye mecanismos para prevenir el uso de tales marcadores de posici\u00f3n maliciosos, sin embargo, debido a un error en el c\u00f3digo, no fueron completamente efectivos para el asunto del correo electr\u00f3nico.\n\n* Los marcadores de posici\u00f3n en los asuntos y cuerpos de texto plano de los correos electr\u00f3nicos fueron evaluados err\u00f3neamente dos veces. Por lo tanto, si la primera evaluaci\u00f3n de un marcador de posici\u00f3n conten\u00eda de nuevo un marcador de posici\u00f3n, este segundo marcador de posici\u00f3n era renderizado. Esto permite la renderizaci\u00f3n de marcadores de posici\u00f3n controlados por el comprador de entradas, y por lo tanto la explotaci\u00f3n del primer problema como comprador de entradas. Afortunadamente, el \u00fanico marcador de posici\u00f3n controlado por el comprador disponible en pretix por defecto (que no est\u00e1 validado de una manera que prevenga el problema) es {invoice_company}, lo cual es muy inusual (pero no imposible) que est\u00e9 contenido en una plantilla de asunto de correo electr\u00f3nico. Adem\u00e1s de ampliar la superficie de ataque del primer problema, esto podr\u00eda te\u00f3ricamente tambi\u00e9n filtrar informaci\u00f3n sobre un pedido a uno de los asistentes dentro de ese pedido. Sin embargo, tambi\u00e9n consideramos este escenario muy improbable bajo condiciones t\u00edpicas.\n\nPor precauci\u00f3n, recomendamos que rote todas las contrase\u00f1as y claves API contenidas en su archivo pretix.cfg https://docs.pretix.eu/self-hosting/config/."}], "lastModified": "2026-02-18T17:52:22.253", "sourceIdentifier": "655498c3-6ec5-4f0b-aea6-853b334d05a6"}