Loading vulnerability…
CVE-2026-35603 is an improper default permissions vulnerability in Claude Code for Windows before version 2.1.75. Claude Code loaded machine-wide managed settings from a vendor-specific directory beneath ProgramData without validating the directory owner or access controls. Because the directory was not pre-created and access-restricted, a non-administrative local user could create it and place a malicious managed-settings configuration. Claude Code subsequently treated that configuration as trusted when launched by other local users. An attacker could configure a session-start hook to execute commands in each victim user's Claude Code session without approval.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting several AI coding tools that abuses application-trusted Windows ProgramData folders to place configuration files and enable a low-privileged attacker’s commands to execute in another user’s session without prompts or elevated access.
A Windows cross-user code-execution and local privilege-escalation vulnerability in Anthropic Claude Code caused by trusting a user-writable ProgramData configuration path. A low-privileged user could plant managed-settings.json containing an event-triggered hook, which would execute in the security context of any subsequent Claude Code user, including administrators.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.