Description
Coder from 2.10.0 before 2.34.8 has an unauthenticated agent debug HTTP server on 127.0.0.1:2113 whose /debug/manifest handler returns the full agent manifest, including template-provided environment variable values. A lower-privileged Unix user or process in the same workspace can query this endpoint to read credentials such as cloud keys or registry tokens.
Published: 2026-10-17
Score: 4.8 Medium
EPSS: n/a
KEV: No
Impact: Information Disclosure
Action: Patch/Update
AI Analysis

Impact

The vulnerability is an unauthenticated debug HTTP endpoint that returns the agent manifest, containing sensitive configuration values. An attacker who can reach the agent’s local socket can retrieve credentials such as cloud keys or registry tokens, allowing disclosure of secrets and potential lateral movement across the workspace. This is a classic information disclosure flaw, CWE‑200.

Affected Systems

The flaw affects Coder installations from version 2.10.0 up to but not including 2.34.8. Any deployment of the coder:coder product that has not been updated to 2.34.8 or later is vulnerable. The agent runs on localhost and is typically accessible to any user or process with workspace access.

Risk and Exploitability

The CVSS score 4.8 indicates a low severity assessment, but exploitation is possible from a lower‑privileged Unix user or process within the same workspace. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is local; although the port is bound to 127.0.0.1, any entity with workspace rights can hit the endpoint and obtain secrets.

Generated by OpenCVE AI on October 17, 2026 at 21:10 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Coder to version 2.34.8 or later to remove or properly restrict the debug endpoint.
  • If an upgrade cannot be performed immediately, block or restrict access to the agent’s debug port (127.0.0.1:2113) using firewall rules or by disabling the debug feature if configuration allows.
  • Ensure that only trusted users have workspace or process access, and monitor for anomalous requests to /debug/manifest.

Generated by OpenCVE AI on October 17, 2026 at 21:10 UTC.

Tracking

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Advisories

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History

Sat, 17 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description Coder from 2.10.0 before 2.34.8 has an unauthenticated agent debug HTTP server on 127.0.0.1:2113 whose /debug/manifest handler returns the full agent manifest, including template-provided environment variable values. A lower-privileged Unix user or process in the same workspace can query this endpoint to read credentials such as cloud keys or registry tokens.
Title Coder from 2.10.0 before 2.34.8 Information Disclosure via Agent /debug/manifest
First Time appeared Coder
Coder coder
Weaknesses CWE-200
CPEs cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*
Vendors & Products Coder
Coder coder
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-17T18:46:38.631Z

Reserved: 2026-10-17T12:19:42.358Z

Link: CVE-2026-111926

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-17T19:16:35.390

Modified: 2026-10-17T19:16:35.390

Link: CVE-2026-111926

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T21:15:15Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor