CVE-2026-55429

Coder's CVE-2026-55429 describes a cross-workspace agent rebinding vulnerability in UpsertWorkspaceApp and insertAgentApp where a provisioner payload can bind a victim app to an attacker-controlled agent due to lack of workspace verification. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, ...

CVE-2026-55429 Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID

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, UpsertWorkspaceApp overwrites an existing app's agentid on a primary-key conflict and insertAgentApp accepts the app ID from the provisioner's CompleteJob...

GO-2026-5909 Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID in github.com/coder/coder

Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID in github.com/coder/coder...

GHSA-9RJW-3GWP-F59V Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID

Summary UpsertWorkspaceApp overwrites an existing app's agentid on a primary-key conflict and insertAgentApp accepts the app ID from the provisioner's CompleteJob payload without verifying it belongs to the workspace being built. CompleteJob runs under dbauthz.AsProvisionerd so the authorization...

Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID

Summary UpsertWorkspaceApp overwrites an existing app's agentid on a primary-key conflict and insertAgentApp accepts the app ID from the provisioner's CompleteJob payload without verifying it belongs to the workspace being built. CompleteJob runs under dbauthz.AsProvisionerd so the authorization...