CVE-2025-55284 Details
Description
Claude Code is an agentic coding tool. Prior to version 1.0.4, it's possible to bypass the Claude Code confirmation prompts to read a file and then send file contents over the network without user confirmation due to an overly broad allowlist of safe commands. Reliably exploiting this requires the ability to add untrusted content into a Claude Code context window. Users on standard Claude Code auto-update received this fix automatically after release. Current users of Claude Code are unaffected, as versions prior to 1.0.24 are deprecated and have been forced to update.
A vulnerability in Claude Code prior to version 1.0.4 allows users to bypass confirmation prompts for file reading and network transmission of file contents. This issue arises from an overly broad allowlist of safe commands, enabling unauthorized file access and data exfiltration. Exploitation requires the ability to introduce untrusted content into a Claude Code context window.
Users on standard Claude Code auto-update have received the patch to version 1.0.4. Current users of Claude Code are unaffected, as versions prior to 1.0.24 are deprecated and have been forced to update.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 18, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/anthropics/claude-code/security/advisories/GHSA-x5gv-jw7f-j6xj | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| anthropic claude code | < 1.0.4 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 24, 2025 | Initial Analysis | [email protected] |
| Aug 16, 2025 | New CVE Received | [email protected] |