TI-2026-32394 Aliases CVE-2026-44454 GHSA-m3cr-vc2j-pm27

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

MEDIUM 45CWE-78Published 2026-07-07 · Updated 2026-07-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02642 85th percentileScored 2026-11-07

Fix Fixed coder (coder): 2.29.7, 2.30.2github.com/coder/coder/v2 (Go): 2.29.7, 2.30.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
coder	coder	before 2.29.7; 2.30.0 to before 2.30.2	2.29.7, 2.30.2	Patch available	CNA
—	github.com/coder/coder/v2 (Go)	before 2.29.7	2.29.7	Patch available	GHSA-m3cr-vc2j-pm27
—	github.com/coder/coder/v2 (Go)	2.30.0 to before 2.30.2	2.30.2	Patch available	GHSA-m3cr-vc2j-pm27
—	github.com/coder/coder (Go)	up to 0.27.3	—	No fix listed	GHSA-m3cr-vc2j-pm27

coder Vendorcoder Affected before 2.29.7; 2.30.0 to before 2.30.2 Fixed in 2.29.7, 2.30.2 Patch available CNA
github.com/coder/coder/v2 (Go) Vendor— Affected before 2.29.7 Fixed in 2.29.7 Patch available GHSA-m3cr-vc2j-pm27
github.com/coder/coder/v2 (Go) Vendor— Affected 2.30.0 to before 2.30.2 Fixed in 2.30.2 Patch available GHSA-m3cr-vc2j-pm27
github.com/coder/coder (Go) Vendor— Affected up to 0.27.3 Fixed in — No fix listed GHSA-m3cr-vc2j-pm27

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:coder:coder::::::go::*	before 2.29.7; 2.30.0 to before 2.30.2	Vulnerable	coder

cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:* Versions before 2.29.7; 2.30.0 to before 2.30.2 Vulnerable ·coder

Remediation

Fix · CNA coder (coder) Fixed in 2.29.7, 2.30.2
Fix · GHSA-m3cr-vc2j-pm27 github.com/coder/coder/v2 (Go) Fixed in 2.29.7 Advisory →
Fix · GHSA-m3cr-vc2j-pm27 github.com/coder/coder/v2 (Go) Fixed in 2.30.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-44454
2026-10-03 Alias added: GHSA-m3cr-vc2j-pm27

References

Patch 5

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-44454

Other 3

TI-2026-34071 Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft CVSS 3.1CRITICAL 9.1
TI-2024-18523 Coder's OIDC authentication allows email with partially matching domain to register CVSS 3.1HIGH 8.2
TI-2026-39997 Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID CVSS 3.1HIGH 8.7
TI-2026-39996 Coder: Route hijacking through lack of validation of agent-supplied AllowedIPs in tailnet coordinator CVSS 3.1HIGH 8.2
TI-2026-39995 Coder vulnerable to SSH config injection via unsanitized server-supplied values in `coder config-ssh` CVSS 3.1HIGH 8.3
TI-2025-36196 Coder's privilege escalation vulnerability could lead to a cross workspace compromise CVSS 3.1HIGH 8.1

See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences