{"vulnerability": "CVE-2026-67990", "sightings": [{"uuid": "d52c5a08-7c52-4b77-aef8-88f887359b73", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-67990", "type": "seen", "source": "https://gist.github.com/Zykis1024/cec690012eecac53f408e78d2b569f06", "content": "# CVE-2026-67990\n\nAffected product:\nbasecamp/upright\n\nAffected version:\nGit commit efe4f2e5254ac6e57e45d2261804cca74dbbca3f\n\nReleased version range:\nNot yet determined.\n\nVulnerability type:\nCross-Site Request Forgery (CSRF), CWE-352\n\nAffected components:\nAlertmanager proxy controller\nPrometheus proxy controller\n\nDescription:\nbasecamp/upright at commit\nefe4f2e5254ac6e57e45d2261804cca74dbbca3f disables Rails\nCSRF protection for its Alertmanager and Prometheus proxy\ncontrollers. An unauthenticated attacker can induce a logged-in\nuser's browser to submit requests that are forwarded to enabled\nupstream write or management endpoints, such as creating an\nAlertmanager silence or requesting a Prometheus reload. The final\nimpact depends on the APIs enabled by the upstream services.\n\nReferences:\nhttps://github.com/basecamp/upright\nhttps://github.com/basecamp/upright/blob/efe4f2e5254ac6e57e45d2261804cca74dbbca3f/app/controllers/upright/alertmanager_proxy_controller.rb#L2\nhttps://github.com/basecamp/upright/blob/efe4f2e5254ac6e57e45d2261804cca74dbbca3f/app/controllers/upright/prometheus_proxy_controller.rb#L2\n", "creation_timestamp": "2026-08-13T04:36:15.859548Z"}]}