CVE-2026-28268

{"id": "CVE-2026-28268", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-02-27T21:16:18.233", "references": [{"url": "https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://vikunja.io/changelog/vikunja-v2.1.0-was-released", "tags": ["Release Notes"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-459"}, {"lang": "en", "value": "CWE-640"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-640"}]}], "descriptions": [{"lang": "en", "value": "Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete, persistent account takeover at any point in the future, bypassing standard authentication controls. Version 2.1.0 contains a patch for the issue."}, {"lang": "es", "value": "Vikunja es una plataforma de gesti\u00f3n de tareas de c\u00f3digo abierto autoalojada. En las versiones anteriores a la 2.1.0, existe una vulnerabilidad de l\u00f3gica de negocio en el mecanismo de restablecimiento de contrase\u00f1a de vikunja/API que permite que los tokens de restablecimiento de contrase\u00f1a sean reutilizados indefinidamente. Debido a un fallo en la invalidaci\u00f3n de tokens tras su uso y a un error de l\u00f3gica cr\u00edtico en el trabajo cron de limpieza de tokens, los tokens de restablecimiento permanecen v\u00e1lidos para siempre. Esto permite a un atacante que intercepta un \u00fanico token de restablecimiento (a trav\u00e9s de registros, historial del navegador o phishing) realizar una toma de control de cuenta completa y persistente en cualquier momento en el futuro, eludiendo los controles de autenticaci\u00f3n est\u00e1ndar. La versi\u00f3n 2.1.0 contiene un parche para el problema."}], "lastModified": "2026-03-06T21:03:09.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F4164A9-6656-425E-81AF-BC892E137C82", "versionEndExcluding": "2.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}