CVE-2026-55433 Details
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, 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.
An authorization bypass vulnerability has been identified in Coder's devcontainer recreate endpoint, prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2. The endpoint relied on route middleware that only checked read permissions on the workspace, failing to enforce the necessary write permissions before initiating a destructive rebuild of the development container. This vulnerability allows authenticated users with low-privilege roles, such as Template Admin or Org Template Admin, to inadvertently destroy uncommitted changes within containers. Furthermore, if exploited repeatedly, this issue could lead to a denial-of-service condition by disrupting the development workflow.
Users can upgrade to Coder versions 2.29.17, 2.32.7, 2.33.8, or 2.34.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/coder/coder/pull/25812 | [email protected] | Issue TrackingPatch |
| https://github.com/coder/coder/releases/tag/v2.29.17 | [email protected] | Release Notes |
| https://github.com/coder/coder/releases/tag/v2.32.7 | [email protected] | Release Notes |
| https://github.com/coder/coder/releases/tag/v2.33.8 | [email protected] | Release Notes |
| https://github.com/coder/coder/releases/tag/v2.34.2 | [email protected] | Release Notes |
| https://github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| coder coder | < 2.29.17 >= 2.30.0, < 2.32.7 >= 2.33.0, < 2.33.8 >= 2.34.0, < 2.34.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jul 8, 2026 | CVE Modified | CISA-ADP |
| Jul 8, 2026 | New CVE Received | [email protected] |