@ANTHROPIC-AI/CLAUDE-CODE · CVE-2026-103012 · AI agents & MCP
FIX → 2.1.260
Claude Code could pick a stored API key over a valid Enterprise or Team sign-in when fetching organization server-managed settings. When the settings endpoint rejected that key, the session ran without the organization's policy or with a stale cached copy.
first public Sep 29, 2026 · 2 sources
Could this affect your app?
Free first check from your website. Connect your repo for the full answer.
Organizations using Claude for Enterprise or Claude for Work (Team) with server-managed settings, on Claude Code from 2.0.68 up to before 2.1.260. Exploitation requires local access to a device holding a stored API key, and endpoint-managed (MDM or file-based) settings were not affected. Standard auto-update users already have the fix; manual updaters should move to 2.1.260.
Not affected if auto-updated, endpoint-managed-settings, no-stored-api-key
Who cares claude-code, enterprise, npm, team
claude --version and compare it against the affected range below.Upgrade to 2.1.260
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.
Check it with your coding agent
It reads this page and tells you if your code is affected.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.
@anthropic-ai/claude-code 2.1.260This page as .md · .json · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.