Is CVE-2026-55429 actively exploited?

No active exploitation of CVE-2026-55429 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-55429 be exploited remotely?

Yes. CVE-2026-55429 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-55429?

CVE-2026-55429 has a CVSS score of 8.7 (HIGH).

HOME VULNERABILITIESCVE-2026-55429

HIGH

CVE-2026-55429

CWE-639Published: July 8, 2026· Updated: Jul 8, 2026

8.7

CVSS v3.1

EPSS:0.51%probability of exploitation in 30 daysPercentile:39.7th

Official Description

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 `agent_id` 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 layer does not block the cross-workspace upsert. Exploitation requires elevated access as a template author or external provisioner operator. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 verifies that any existing `workspace_apps` row matching the supplied ID belongs to the workspace being built and rejects cross-workspace agent reassignment. No known workarounds are available.

NVD Source

Technical Analysis

CVE-2026-55429 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.