RCE in Cline
CVE-2026-30313
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.022 · change: +0.010
Affected products
Weakness classification (CWE)
References
- github.com/necboy/cline-DSAI (Product)
- github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/9 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-30313?
- CVE-2026-30313 is a critical-severity vulnerability in Cline, classified under Code Injection. CVSS score: 9.8/10. Published 2026-03-30.
- How severe is CVE-2026-30313?
- Critical severity. CVSS v3 base score is 9.8 out of 10.