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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.

PUBLISHED Reserved 2025-07-29 | Published 2025-08-05 | Updated 2025-08-05 | Assigner GitHub_M




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

< 1.0.20
affected

References

github.com/...e-code/security/advisories/GHSA-x56v-x2h6-7j34

cve.org (CVE-2025-54795)

nvd.nist.gov (CVE-2025-54795)

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