CVE-2026-44454

Coder vulnerable to workspace auto-creation via crafted URL parameters without user consent

Published Jul 7, 2026 CVSS 3.1 · 8.1 High EPSS 2.6% KEV · Not listed
Description
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7 and 2.30.2, the `dotfiles` registry module passed unsanitized user input to shell commands, allowing arbitrary code execution inside a provisioned workspace. Any user who supplied a crafted `dotfiles_uri` value (for example, one containing shell command substitution such as `$(...)`) could achieve command execution in their own workspace. The Create Workspace page's `mode=auto` deep links amplified this into a one-click attack: an attacker could craft a URL that prefilled `param.dotfiles_uri` and silently provisioned a workspace with the attacker-controlled value, with no explicit user confirmation. In versions 2.29.7 and 2.30.2, input validation was added to the dotfiles module to reject URIs and usernames containing special characters, and the unsafe `eval`/`sh -c` usage was removed. This eliminated the command injection at its source.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m3cr-vc2j-pm27 Coder vulnerable to workspace auto-creation via crafted URL parameters without user consent
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Coder
Coder coder
Vendors & Products Coder
Coder coder
Type Values Removed Values Added
Description Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7 and 2.30.2, workspace creation via `mode=auto` deep links silently provisioned workspaces with attacker-controlled parameters, requiring no explicit user confirmation. In versions 2.29.7 and 2.30.2, a consent dialog was added that displays all prefilled `param.*` values and blocks creation until the user explicitly clicks Confirm and Create. Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7 and 2.30.2, the `dotfiles` registry module passed unsanitized user input to shell commands, allowing arbitrary code execution inside a provisioned workspace. Any user who supplied a crafted `dotfiles_uri` value (for example, one containing shell command substitution such as `$(...)`) could achieve command execution in their own workspace. The Create Workspace page's `mode=auto` deep links amplified this into a one-click attack: an attacker could craft a URL that prefilled `param.dotfiles_uri` and silently provisioned a workspace with the attacker-controlled value, with no explicit user confirmation. In versions 2.29.7 and 2.30.2, input validation was added to the dotfiles module to reject URIs and usernames containing special characters, and the unsafe `eval`/`sh -c` usage was removed. This eliminated the command injection at its source.
Type Values Removed Values Added
Description Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7 and 2.30.2, workspace creation via `mode=auto` deep links silently provisioned workspaces with attacker-controlled parameters, requiring no explicit user confirmation. In versions 2.29.7 and 2.30.2, a consent dialog was added that displays all prefilled `param.*` values and blocks creation until the user explicitly clicks Confirm and Create.
Title Coder vulnerable to workspace auto-creation via crafted URL parameters without user consent
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 8, 2026, 1:48 PM
Reserved
May 6, 2026, 3:49 PM
Status
Analyzed
Published
Jul 7, 2026, 9:17 PM
Modified
Jul 8, 2026, 7:47 PM