Claude Code selected an API key stored by Claude Code, for example from an earlier `/login` or written directly to its configuration, ahead of the user's valid Claude Enterprise or Team sign-in when fetching the organization's server-managed settings, even though the session itself authenticated with the Enterprise or Team account. When the settings endpoint rejected that stored key, the session started without the organization's server-managed policy (such as permission deny rules, model restrictions and managed-only locks) or, if a previously cached copy existed on the machine, kept applying that stale copy without receiving later policy changes — while continuing to operate as the organization's account. Triggering this required local access to a device with such a stored API key; the no-policy case additionally required that no managed settings had previously been cached. Endpoint-managed (MDM or file-based) settings were not affected. Claude for Enterprise organizations were affected from version 2.0.68; Claude for Work (Team) organizations from version 2.1.38, when server-managed settings became available to them. Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to version 2.1.260 or later. Thank you to Tamas Voros / NVIDIA AI Red Team for reporting this issue.
History

Thu, 01 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
Title API Key Credential Misuse Leading to Unauthorized Policy Application in Claude Code claude-code: claude-code: Security policy bypass via improper credential prioritization
Weaknesses CWE-280
References
Metrics threat_severity

None

cvssV3_1

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

threat_severity

Low


Wed, 30 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Anthropic
Anthropic claude Code
Vendors & Products Anthropic
Anthropic claude Code

Wed, 30 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 30 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Title API Key Credential Misuse Leading to Unauthorized Policy Application in Claude Code

Wed, 30 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description Claude Code selected an API key stored by Claude Code, for example from an earlier `/login` or written directly to its configuration, ahead of the user's valid Claude Enterprise or Team sign-in when fetching the organization's server-managed settings, even though the session itself authenticated with the Enterprise or Team account. When the settings endpoint rejected that stored key, the session started without the organization's server-managed policy (such as permission deny rules, model restrictions and managed-only locks) or, if a previously cached copy existed on the machine, kept applying that stale copy without receiving later policy changes — while continuing to operate as the organization's account. Triggering this required local access to a device with such a stored API key; the no-policy case additionally required that no managed settings had previously been cached. Endpoint-managed (MDM or file-based) settings were not affected. Claude for Enterprise organizations were affected from version 2.0.68; Claude for Work (Team) organizations from version 2.1.38, when server-managed settings became available to them. Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to version 2.1.260 or later. Thank you to Tamas Voros / NVIDIA AI Red Team for reporting this issue.
Weaknesses CWE-696
References
Metrics cvssV4_0

{'score': 2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Anthropic

Published: 2026-09-30T11:30:38.308Z

Updated: 2026-09-30T14:28:45.094Z

Reserved: 2026-09-29T21:06:44.918Z

Link: CVE-2026-103012

cve-icon Vulnrichment

Updated: 2026-09-30T14:28:40.911Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T12:17:12.303

Modified: 2026-09-30T16:12:10.307

Link: CVE-2026-103012

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-30T11:30:38Z

Links: CVE-2026-103012 - Bugzilla