CVE-2026-33149

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{"affected": [{"affectedData": [{"product": "recipes", "vendor": "TandoorRecipes", "versions": [{"status": "affected", "version": "<= 2.5.3"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:tandoor:recipes:*:*:*:*:*:*:*:*", "matchCriteriaId": "DCA6ADE9-290A-4269-83FD-F508CCA327A5", "versionEndIncluding": "2.5.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Versions up to and including 2.5.3 set ALLOWED_HOSTS = '*' by default, which causes Django to accept any value in the HTTP Host header without validation. The application uses request.build_absolute_uri() to generate absolute URLs in multiple contexts, including invite link emails, API pagination, and OpenAPI schema generation. An attacker who can send requests to the application with a crafted Host header can manipulate all server-generated absolute URLs. The most critical impact is invite link poisoning: when an admin creates an invite and the application sends the invite email, the link points to the attacker's server instead of the real application. When the victim clicks the link, the invite token is sent to the attacker, who can then use it at the real application. As of time of publication, it is unknown if a patched version is available."}, {"lang": "es", "value": "Tandoor Recipes es una aplicaci\u00f3n para gestionar recetas, planificar comidas y crear listas de la compra. Las versiones hasta la 2.5.3 inclusive establecen ALLOWED_HOSTS = '*' por defecto, lo que provoca que Django acepte cualquier valor en la cabecera HTTP Host sin validaci\u00f3n. La aplicaci\u00f3n utiliza request.build_absolute_uri() para generar URLs absolutas en m\u00faltiples contextos, incluyendo correos electr\u00f3nicos de enlaces de invitaci\u00f3n, paginaci\u00f3n de la API y generaci\u00f3n de esquemas OpenAPI. Un atacante que pueda enviar solicitudes a la aplicaci\u00f3n con una cabecera Host manipulada puede manipular todas las URLs absolutas generadas por el servidor. El impacto m\u00e1s cr\u00edtico es el envenenamiento de enlaces de invitaci\u00f3n: cuando un administrador crea una invitaci\u00f3n y la aplicaci\u00f3n env\u00eda el correo electr\u00f3nico de invitaci\u00f3n, el enlace apunta al servidor del atacante en lugar de a la aplicaci\u00f3n real. Cuando la v\u00edctima hace clic en el enlace, el token de invitaci\u00f3n se env\u00eda al atacante, quien luego puede usarlo en la aplicaci\u00f3n real. En el momento de la publicaci\u00f3n, se desconoce si hay una versi\u00f3n parcheada disponible."}], "id": "CVE-2026-33149", "lastModified": "2026-06-17T10:37:01.897", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33149", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-30T13:58:19.094617Z", "version": "2.0.3"}}]}, "published": "2026-03-26T19:17:02.967", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-x636-4jx6-xc4w"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-x636-4jx6-xc4w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-644"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "recipes", "source": "cna", "vendor": "TandoorRecipes"}, "product": "recipes", "vendor": "tandoorrecipes"}], "analysis": {"en": {"generated_at": "2026-03-26T20:24:33.316985+00:00", "value": {"mitigation_remediation": ["Check the TandoorRecipes repository or official release channel for a newer version that removes the default '*' ALLOWED_HOSTS and apply the update if one is released.", "If no update is available, edit the Django settings to replace ALLOWED_HOSTS = ['*'] with a whitelist of known, trusted hostnames for your deployment.", "Verify that all outbound URLs\u2014including invite emails, pagination links, and OpenAPI definitions\u2014use validated host information and that request.build_absolute_uri() calls are protected against untrusted headers.", "Consider disabling the invite link feature or restricting invitation creation until a secure release is installed."], "summary": {"action": "Apply Patch", "impact": "Privilege Escalation via Invite Link Theft"}, "threat_synthesis": {"affected_systems": "The affected product is TandoorRecipes:recipes. All releases up to and including version 2.5.3 are vulnerable. No patched or fixed release has been reported at the time of this advisement. Users running any affected release should treat the system as insecure until an updated build is available.", "description_and_impact": "TandoorRecipes, a Django\u2011based recipe management platform, historically sets the ALLOWED_HOSTS setting to '*' by default in versions up to 2.5.3. This configuration causes the server to accept any value presented in the HTTP Host header without validation. When the application calls request.build_absolute_uri()\u2014used for generating invite links, API pagination, and OpenAPI schemas\u2014a malicious actor can send requests with a forged Host header and cause the application to generate absolute URLs that point to an attacker\u2010controlled domain. The most consequential consequence is invite link poisoning: an administrator\u2019s invitation email contains a link that appears legitimate but redirects the recipient to the attacker\u2019s site. When the victim follows the link, the invite token is exposed to the attacker, who can then use the token to log in to the real application as a privileged user. This attack is a classic example of Host Header Injection (CWE\u2011644) and leads to unauthorized access by stealing privileged tokens.", "risk_and_exploitability": "The vulnerability carries a CVSS score of 8.1, indicating high severity. The EPSS score is not published, and it is absent from the CISA KEV catalog, suggesting no widespread exploitation at the moment. However, because an attacker only needs the ability to send HTTP requests to the service, the attack requires remote network access rather than local privilege, making it potentially exploitable over the internet. The lack of any publicly available fix amplifies the risk, as targeted attackers can poison invites and compromise accounts with minimal effort."}}}}, "created": "2026-03-27T08:33:21.128651+00:00", "updated": "2026-03-27T09:25:42.392855+00:00", "vendors": ["tandoorrecipes", "tandoorrecipes$PRODUCT$recipes"]}