RCE in Coze-Dev Coze-Studio
CVE-2026-77934
Coze Studio before 0.5.0 contains an insecure default configuration that allows any registered user to execute commands by running workflow code nodes in an unsandboxed python3 subprocess. Attackers can bypass the regex import filter with __import__('subprocess') to run commands, stealing environment variables, model API keys, and accessing MySQL, MinIO, Redis and etcd.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/coze-dev/coze-studio/blob/ffec252d9e2600f61d49b8228a642335e84d5496/d… (technical-description)
- github.com/coze-dev/coze-studio/commit/fcf40d1008c100108c23be051a49950283f2c2cf (patch)
- www.lasso.security/vulnerability-database/cve-2026-77934 (technical-description, exploit)
- www.vulncheck.com/advisories/coze-studio-before-0.5.0-rce-via-unsandboxed-local… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-77934?
- CVE-2026-77934 is a high-severity vulnerability in Coze-Dev Coze-Studio, classified under Initialization of a Resource with an Insecure Default. CVSS score: 8.8/10. Published 2026-10-20.
- How severe is CVE-2026-77934?
- High severity. CVSS v3 base score is 8.8 out of 10.