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VTCode Vulnerable to Arbitrary Command Execution via ANSI-C Quote Bypass

VTCode Vulnerable to Arbitrary Command Execution via ANSI-C Quote Bypass

First seen 5 Oct 2026, 18:08 UTC • •
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ThreatCluster AI
ThreatCluster •October 5, 2026 at 18:09 UTC
  • •VTCode is vulnerable to arbitrary command execution via ANSI-C quote bypass.
  • •The vulnerability allows commands to be auto-approved after three safe finds.
  • •Users must upgrade to VTCode version 0.171.5 or later to mitigate the risk.

VTCode, a command-line tool, has been found vulnerable to arbitrary command execution through an ANSI-C quote bypass. This vulnerability allows attackers to exploit the tool's family learning feature, which auto-approves commands after three safe finds are approved in the same workspace. By using empty ANSI-C quotes, an attacker can craft a malicious find command that appears safe and executes without further user approval. The vulnerability affects versions prior to 0.171.5, which has been patched to reject such splices and prevent family learning for certain command types. Users are advised to upgrade to version 0.171.5 or later to mitigate this risk. Until then, workspaces with untrusted prompts should be treated as capable of executing shell commands after a few ordinary finds have been approved.

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Timeline

2026-10-05
Vulnerability disclosed
VTCode's vulnerability to arbitrary command execution was publicly disclosed, detailing the exploit method and affected versions.
Research.Jfrog
2026-10-05
Patch released
VTCode version 0.171.5 was released, addressing the vulnerability by rejecting dangerous command patterns and preventing family learning.
github.com

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Common questions

What versions of VTCode are affected?
Versions prior to 0.171.5 are affected by this vulnerability.
How can I mitigate this vulnerability?
Upgrade to VTCode version 0.171.5 or later to mitigate the risk of arbitrary command execution.
Is there evidence of active exploitation?
No evidence of active exploitation has been reported at this time.