CVE-2026-30312

Description

DSAI-Cline's command auto-approval module contains a critical OS command injection vulnerability that renders its whitelist security mechanism completely ineffective. The system relies on string-based parsing to validate commands; while it intercepts dangerous operators such as ;, &&, ||, |, and command substitution patterns, it fails to account for raw newline characters embedded within the input. An attacker can construct a payload by embedding a literal newline between a whitelisted command and malicious code (e.g., git log malicious_command), forcing DSAI-Cline to misidentify it as a safe operation and automatically approve it. The underlying PowerShell interpreter treats the newline as a command separator, executing both commands sequentially, resulting in Remote Code Execution without any user interaction.

CVSS Details

CVSS Score

9.8

Severity

CRITICAL

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

DSAI-Cline (CVE-2026-30312修复前)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# PoC demonstrating the bypass using a newline character
# The system sees 'git log' as whitelisted and ignores the newline.
# PowerShell executes 'git log' and then 'malicious_command'.

git log
malicious_command

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-30312
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-30312
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-30312/
[4] VulDB https://vuldb.com/cve/CVE-2026-30312
[5] https://github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/9
[6] https://github.com/necboy/cline-DSAI

Raw JSON Data

JSON

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