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...

golang.org/x/crypto/ssh/agent: golang.org/x/crypto/ssh/agent: Security bypass due to improper handling of key restrictions

A flaw was found in golang.org/x/crypto/ssh/agent. When a key was added to a remote agent, security restrictions, known as constraint extensions, were not properly processed during the request. This allowed these restrictions to be silently removed when keys were forwarded, leading to the...

CVE-2026-44938

CVE-2026-44938 affects Fleet’s agent-side deployer, which did not filter security‑sensitive keys from namespaceLabels when applying them to a target namespace. An attacker with git push access to a Fleet-monitored repo could overwrite Pod Security Standards (PSS) enforcement labels, weakening adm...

Improper Authorization

The CreateSubAgent RPC is vulnerable to improper authorization. The vulnerability is due to the failure to validate the requested app sharing level against the template's maximum allowed sharing level before persisting workspace apps, which allows a workspace owner to exceed the...

GHSA-QRWJ-VH9X-GW5V Coder's workspace agent API insecure redirect handling allowed cross-agent file read and write

Summary agentConn.apiClient used the default redirect behavior of http.Client while its custom transport dialed the host from the request URL as long as the port was the workspace agent HTTP API port 4. Agent tailnet IPs are deterministic from agent UUIDs, so a malicious workspace agent could...

GHSA-X9QQ-2QH5-8RXF Coder's sub-agent app registration bypasses template port-sharing policy enforcement

Summary The CreateSubAgent RPC did not validate a requested app sharing level against the template's MaxPortSharingLevel before persisting workspace apps, letting a workspace owner exceed the administrator's configured maximum. Note: Exploitation requires the ability to register sub-agent apps in...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby...

Coder's sub-agent app registration bypasses template port-sharing policy enforcement

Summary The CreateSubAgent RPC did not validate a requested app sharing level against the template's MaxPortSharingLevel before persisting workspace apps, letting a workspace owner exceed the administrator's configured maximum. Note: Exploitation requires the ability to register sub-agent apps in...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the AllowedIPs process. An attacker can intercept network traffic and serve spoofed content by supplying arbitrary AllowedIPs prefixes, allowing them to claim another agent's tailnet address. This is only...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the AllowedIPs process. An attacker can intercept network traffic and serve spoofed content by supplying arbitrary AllowedIPs prefixes, allowing them to claim another agent's tailnet address. This is only...

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...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the UpsertWorkspaceApp process. An attacker can gain unauthorized access to another user's workspace app by submitting a crafted payload with a known victim app UUID and an...

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...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the UpsertWorkspaceApp process. An attacker can gain unauthorized access to another user's workspace app by submitting a crafted payload with a known victim app UUID and an...

XML External Entity (XXE) Injection

Overview Affected versions of this package are vulnerable to XML External Entity XXE Injection in the startAssetImport process. An attacker can access arbitrary files on the server filesystem and potentially interact with internal or cloud metadata endpoints by uploading a specially crafted ETS...