PT-2026-33510 · Anthropic · Claude-Code

Published 2026-04-17 · Updated 2026-04-18 · CVE-2026-35603

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Claude Code versions prior to 2.1.75

Description On Windows, the software loads the system-wide default configuration from the endpoint 'C:ProgramDataClaudeCodemanaged-settings.json' without validating directory ownership or access permissions. Since the ProgramData directory is writable by non-administrative users by default and the ClaudeCode subdirectory was not pre-created or access-restricted, a low-privileged local user could create this directory and place a malicious configuration file. This file would then be automatically loaded for any user launching the tool on the same shared multi-user system.

Recommendations Update to version 2.1.75 or later.

Fix

Untrusted Search Path

Weakness Enumeration

CWE-426

Related Identifiers

CVE-2026-35603

GHSA-5CWG-9F6J-9JVX

Affected Products

Claude-Code

References · 6

• https://github.com/anthropics/claude-code/security/advisories/GHSA-5cwg-9f6j-9jvx · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35603 · Security Note
• https://osv.dev/vulnerability/GHSA-5cwg-9f6j-9jvx · Vendor Advisory
• https://github.com/anthropics/claude-code · Note
• https://twitter.com/CVEnew/status/2045467398665322783 · Twitter Post
• https://twitter.com/dailycve/status/2045321896552448314 · Twitter Post