What is CVE-2026-91936?

CVE-2026-91936 is a medium-severity vulnerability in Flowiseai Flowise, classified under OS Command Injection. CVSS score: 6.8/10. Published 2026-09-15.

How severe is CVE-2026-91936?

Medium severity. CVSS v3 base score is 6.8 out of 10.

RCE in Flowiseai Flowise

CVE-2026-91936

Flowise versions before 3.1.4 contain a script injection vulnerability in Docker image build workflows where workflow_dispatch inputs are directly interpolated into shell run blocks. Attackers with repository write access can inject shell metacharacters through inputs like tag_version and node_version to execute arbitrary commands and steal AWS credentials and Docker Hub tokens.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N.

Affected products

Flowiseai Flowise

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-91936?: CVE-2026-91936 is a medium-severity vulnerability in Flowiseai Flowise, classified under OS Command Injection. CVSS score: 6.8/10. Published 2026-09-15.
How severe is CVE-2026-91936?: Medium severity. CVSS v3 base score is 6.8 out of 10.