Description
Claude Code is an agentic coding tool. In versions below 1.0.20, an error in command parsing makes it possible to bypass the Claude Code confirmation prompt to trigger execution of an untrusted command. Reliably exploiting this requires the ability to add untrusted content into a Claude Code context window. This is fixed in version 1.0.20.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| anthropics | claude-code | < 1.0.20 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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alonisser/ralph ★ 0 · Jan 3, 2026
Ralph Wiggum plugin implementation that works after the CVE-2025-54795 security patch
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | @anthropic-ai/claude-code | < 1.0.20 | 1.0.20 | GHSA-x56v-x2h6-7j34 |