Описание
Coder: Devcontainer recreate endpoint missing write authorization allows read-only roles to destroy containers
Summary
The devcontainer recreate endpoint relied on route middleware that checked only ActionRead on the workspace and, unlike the sibling delete endpoint, performed no ActionUpdate check before triggering the destructive rebuild.
Note: Exploitation requires an existing low-privilege role with access to the target workspace.
Impact
Any authenticated principal with read-only workspace access, such as a Template Admin or Org Template Admin, could recreate a devcontainer, destroying uncommitted in-container state and, if called repeatedly, denying service. This is an authorization bypass leading to data loss and denial of service.
Patches
The fix adds an explicit ActionUpdate authorization check before the agent is dialed like the delete endpoint.
The fix was backported to all supported release lines:
Workarounds
None.
Resources
- Fix: #25812
Credits
Coder would like to thank Anthropic's Security Team (ANT-2026-22454) for independently disclosing this issue!
Пакеты
github.com/coder/coder/v2
>= 2.34.0, < 2.34.2
2.34.2
github.com/coder/coder/v2
>= 2.33.0, < 2.33.8
2.33.8
github.com/coder/coder/v2
>= 2.30.0, < 2.32.7
2.32.7
github.com/coder/coder/v2
< 2.29.17
2.29.17
Связанные уязвимости
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the devcontainer recreate endpoint relied on route middleware that checked only `ActionRead` on the workspace and, unlike the sibling delete endpoint, performed no `ActionUpdate` check before triggering the destructive rebuild. Exploitation requires an existing low-privilege role with access to the target workspace. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 adds an explicit `ActionUpdate` authorization check before the agent is dialed like the delete endpoint. No known workarounds are available.