Coder up to 2.38.3 External Agent Credentials Endpoint privileges management

Summaryinfo

A vulnerability was found in Coder up to 2.29.23/2.34.15/2.36.10/2.37.7/2.38.3 and classified as problematic. This affects an unknown function of the component External Agent Credentials Endpoint. The manipulation results in privileges management. This vulnerability was named CVE-2026-126403. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Coder up to 2.29.23/2.34.15/2.36.10/2.37.7/2.38.3. Affected is an unknown code of the component External Agent Credentials Endpoint. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Coder 2.26.0 before 2.29.24, 2.30.0 before 2.34.16, 2.35.0 before 2.36.11, 2.37.0 before 2.37.8, and 2.38.0 before 2.38.4 contains an improper authorization flaw in the external agent credentials endpoint, which returns the workspace agent token to users with only workspace read access rather than ssh permission. Authenticated users with roles such as Template Admin or Organization Admin can use the token to read the owner's private Git SSH key and Git provider OAuth tokens, and impersonate the agent to receive the owner's sessions.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-126403 since 11/10/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 2.29.24, 2.34.16, 2.36.11, 2.37.8 or 2.38.4 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Coder

Version

• 2.29.0
• 2.29.1
• 2.29.2
• 2.29.3
• 2.29.4
• 2.29.5
• 2.29.6
• 2.29.7
• 2.29.8
• 2.29.9
• 2.29.10
• 2.29.11
• 2.29.12
• 2.29.13
• 2.29.14
• 2.29.15
• 2.29.16
• 2.29.17
• 2.29.18
• 2.29.19
• 2.29.20
• 2.29.21
• 2.29.22
• 2.29.23
• 2.34.0
• 2.34.1
• 2.34.2
• 2.34.3
• 2.34.4
• 2.34.5
• 2.34.6
• 2.34.7
• 2.34.8
• 2.34.9
• 2.34.10
• 2.34.11
• 2.34.12
• 2.34.13
• 2.34.14
• 2.34.15
• 2.36.0
• 2.36.1
• 2.36.2
• 2.36.3
• 2.36.4
• 2.36.5
• 2.36.6
• 2.36.7
• 2.36.8
• 2.36.9
• 2.36.10
• 2.37.0
• 2.37.1
• 2.37.2
• 2.37.3
• 2.37.4
• 2.37.5
• 2.37.6
• 2.37.7
• 2.38.0
• 2.38.1
• 2.38.2
• 2.38.3

Website

• Product: https://github.com/coder/coder/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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