CVE 9.6 CRITICAL

CodeWhale: run_tests Tool Enables RCE via Malicious Repository Without Approval_CVE-2026-45311

9.6 / 10
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Description

CodeWhale is a DeepSeek + MiMo coding agent in terminal. From 0.3.0 to 0.8.23, the run_tests tool executes cargo test in the workspace with ApprovalRequirement::Auto, meaning it runs without any user approval prompt. cargo test compiles and executes arbitrary code: test binaries, build.rs build scripts, and proc macros. While auto-approving test execution is a deliberate design choice, it creates an inconsistency in the security boundary. However, in a malicious repository, test code can execute arbitrary shell commands, exfiltrate credentials, or establish persistence with zero approval. The attack is amplified by AGENTS.md (auto-loaded into the system prompt), which can instruct the model to run tests proactively at session start. This vulnerability is fixed in 0.8.23.

AI Analysis

Remote Code Execution (RCE) vulnerability in CodeWhale due to the run_tests tool executing cargo test without user approval, allowing malicious repositories to execute arbitrary shell commands, exfiltrate credentials, or establish persistence.

Basic Information

ID CVE-2026-45311
Source GitHub_M
Published May 28, 2026 at 17:32

Affected Product

Vendor Hmbown
Product CodeWhale
Version >= 0.3.0, < 0.8.23
Affected Versions Hmbown CodeWhale >= 0.3.0, < 0.8.23

CWE Classification

AI Assessment

AI Score 9.6 / 10
AI Severity Critical
Vendor Hmbown
Product CodeWhale
Version 0.3.0-0.8.23

References

💭 Join the Security Discussion

🔒 Your email address will not be published. Required fields are marked *

⚠️ Please be respectful and constructive in your comments. Security discussions should remain professional.