{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33680", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-23T16:34:59.931Z", "datePublished": "2026-03-24T15:47:47.529Z", "dateUpdated": "2026-03-24T15:47:47.529Z"}, "containers": {"cna": {"title": "Vikunja Vulnerable to Link Share Hash Disclosure via ReadAll Endpoint Enables Permission Escalation", "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "lang": "en", "description": "CWE-285: Improper Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8hp8-9fhr-pfm9", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8hp8-9fhr-pfm9"}, {"name": "https://github.com/go-vikunja/vikunja/commit/9efe1fadba817923c7c7f5953c3e9e9c5683bbf3", "tags": ["x_refsource_MISC"], "url": "https://github.com/go-vikunja/vikunja/commit/9efe1fadba817923c7c7f5953c3e9e9c5683bbf3"}, {"name": "https://vikunja.io/changelog/vikunja-v2.2.2-was-released", "tags": ["x_refsource_MISC"], "url": "https://vikunja.io/changelog/vikunja-v2.2.2-was-released"}], "affected": [{"vendor": "go-vikunja", "product": "vikunja", "versions": [{"version": "< 2.2.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-24T15:47:47.529Z"}, "descriptions": [{"lang": "en", "value": "Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.2, the `LinkSharing.ReadAll()` method allows link share authenticated users to list all link shares for a project, including their secret hashes. While `LinkSharing.CanRead()` correctly blocks link share users from reading individual shares via `ReadOne`, the `ReadAllWeb` handler bypasses this check by never calling `CanRead()`. An attacker with a read-only link share can retrieve hashes for write or admin link shares on the same project and authenticate with them, escalating to full admin access. Version 2.2.2 patches the issue."}], "source": {"advisory": "GHSA-8hp8-9fhr-pfm9", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.2, the `LinkSharing.ReadAll()` method allows link share authenticated users to list all link shares for a project, including their secret hashes. While `LinkSharing.CanRead()` correctly blocks link share users from reading individual shares via `ReadOne`, the `ReadAllWeb` handler bypasses this check by never calling `CanRead()`. An attacker with a read-only link share can retrieve hashes for write or admin link shares on the same project and authenticate with them, escalating to full admin access. Version 2.2.2 patches the issue."}, {"lang": "es", "value": "Vikunja es una plataforma de gesti\u00f3n de tareas de c\u00f3digo abierto autoalojada. Antes de la versi\u00f3n 2.2.2, el m\u00e9todo `LinkSharing.ReadAll()` permite a los usuarios autenticados con un enlace compartido listar todos los enlaces compartidos de un proyecto, incluyendo sus hashes secretos. Si bien `LinkSharing.CanRead()` bloquea correctamente a los usuarios de enlaces compartidos de leer enlaces compartidos individuales a trav\u00e9s de `ReadOne`, el gestor `ReadAllWeb` omite esta verificaci\u00f3n al no llamar nunca a `CanRead()`. Un atacante con un enlace compartido de solo lectura puede recuperar hashes de enlaces compartidos de escritura o de administrador en el mismo proyecto y autenticarse con ellos, escalando a acceso de administrador completo. La versi\u00f3n 2.2.2 corrige el problema."}], "id": "CVE-2026-33680", "lastModified": "2026-03-25T15:41:58.280", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-24T16:16:35.570", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/go-vikunja/vikunja/commit/9efe1fadba817923c7c7f5953c3e9e9c5683bbf3"}, {"source": "security-advisories@github.com", "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8hp8-9fhr-pfm9"}, {"source": "security-advisories@github.com", "url": "https://vikunja.io/changelog/vikunja-v2.2.2-was-released"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.2.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "vikunja", "source": "cna", "vendor": "go-vikunja"}, "product": "vikunja", "vendor": "go-vikunja"}], "created": "2026-03-25T11:47:05.450122+00:00", "updated": "2026-03-25T11:47:05.450200+00:00", "vendors": ["go-vikunja", "go-vikunja$PRODUCT$vikunja"]}