CVE-2025-58437

Description

Coder allows organizations to provision remote development environments via Terraform. In versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1, Coder can be compromised through insecure session handling in prebuilt workspaces. Coder automatically generates a session token for a user when a workspace is started. It is automatically exposed via coder_workspace_owner.session_token. Prebuilt workspaces are initially owned by a built-in prebuilds system user. When a prebuilt workspace is claimed, a new session token is generated for the user that claimed the workspace, but the previous session token for the prebuilds user was not expired. Any Coder workspace templates that persist this automatically generated session token are potentially impacted. This is fixed in versions 2.24.4 and 2.25.2.

CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-277 CWE-277

CWE-279 CWE-279

CWE-613 CWE-613

Affected Products

Vendor	Product	Versions
coder	coder	2.22 — 2.24.4
coder	coder	2.25.0 — 2.25.2

References

Advisories & Patches

https://github.com/coder/coder/commit/06cbb2890f453cd522bb2158a6549afa3419c276 https://github.com/coder/coder/commit/20d67d7d7191a4fd5d36a61c6fc1e23ab59befc0 https://github.com/coder/coder/commit/ec660907faa0b0eae20fa2ba58ce1733f5f4b35a https://github.com/coder/coder/security/advisories/GHSA-j6xf-jwrj-v5qp

Exploits

https://github.com/coder/coder/security/advisories/GHSA-j6xf-jwrj-v5qp

Other References

https://github.com/coder/coder/pull/19667 https://github.com/coder/coder/pull/19668 https://github.com/coder/coder/pull/19669

Frequently Asked Questions

What is CVE-2025-58437? +

Coder allows organizations to provision remote development environments via Terraform. In versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1, Coder can be compromised through insecure session handling in prebuilt workspaces. Coder automatically generates a session token for a user when a workspace is started. It is automatically exposed via coder_workspace_owner.session_token. Prebuilt workspaces are initially owned by a built-in prebuilds system user. When a prebuilt workspace is claimed, a new session token is generated for the user that claimed the workspace, but the previous session token for the prebuilds user was not expired. Any Coder workspace templates that persist this automatically generated session token are potentially impacted. This is fixed in versions 2.24.4 and 2.25.2. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2025-58437? +

CVE-2025-58437 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-58437? +

CVE-2025-58437 affects products from coder, specifically: coder. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-58437? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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