CVE-2026-67990
Description
AI Translation Available
basecamp/upright at commit efe4f2e5254ac6e57e45d2261804cca74dbbca3f disables Rails CSRF protection for its Alertmanager and Prometheus proxy controllers. An unauthenticated attacker can induce a logged-in user's browser to submit requests that are forwarded to enabled upstream write or management endpoints, such as creating an Alertmanager silence or requesting a Prometheus reload. The final impact depends on the APIs enabled by the upstream services.
https://gist.github.com/Zykis1024/cec690012eecac53f408e78d2b569f06
https://github.com/basecamp/upright
https://github.com/basecamp/upright/blob/efe4f2e5254ac6e57e45d2261804cca74dbbca…
https://github.com/basecamp/upright/blob/efe4f2e5254ac6e57e45d2261804cca74dbbca…