RCE in Taklaxbr Zai-Shell
CVE-2026-25807
ZAI Shell is an autonomous SysOps agent designed to navigate, repair, and secure complex environments. Prior to 9.0.3, the P2P terminal sharing feature (share start) opens a TCP socket on port 5757 without any authentication mechanism. Any remote attacker can connect to this port using a simple socket script. An attacker who connects to a ZAI-Shell P2P session running in --no-ai mode can send arbitrary system commands. If the host user approves the command without reviewing its contents, the command executes directly with the user's privileges, bypassing all Sentinel safety checks. This vulnerability is fixed in 9.0.3.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.006 (47.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Taklaxbr Zai-shell — versions < 9.0.3
- Taklaxbr Zai_shell
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-25807?
- CVE-2026-25807 is a high-severity vulnerability in Taklaxbr Zai-Shell, classified under Code Injection. CVSS score: 8.8/10. Published 2026-02-09.
- How severe is CVE-2026-25807?
- High severity. CVSS v3 base score is 8.8 out of 10.