🛡️ CVE-2026-35022
🔴 CVSS 9.8 — Critical ✅ No Known Exploit NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in authentication helper execution where helper configuration values are executed using shell=true without input validation. Attackers who can influence authentication settings can inject shell metacharacters through parameters like apiKeyHelper, awsAuthRefresh, awsCredentialExport, and gcpAuthRefresh to execute arbitrary commands with the privileges of the user or automation environment, enabling credential theft and environment variable exfiltration.

Details

Severity Critical
CVSS Score 9.8
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-04-06
Updated 2026-06-02
Modified N/A
Fix URL N/A

Affected Packages

Software From version Fixed in
claude-agent-sdk — 0.1.55
claude-code — 2.1.91
unknown — —

References

N/A

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