What is CVE-2026-45087?

CVE-2026-45087 is a critical-severity vulnerability in Hahwul Dalfox, classified under CWE-15. CVSS score: 10.0/10. Published 2026-05-27.

How severe is CVE-2026-45087?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Hahwul Dalfox

CVE-2026-45087

Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is started in REST API server mode (dalfox server), the server binds to 0.0.0.0:6664 by default and requires no API key unless the…

EPSS: 0.001 (19.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Hahwul Dalfox — versions < 2.13.0

Weakness classification (CWE)

CWE-15
CWE-78 — OS Command Injection
CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-45087?: CVE-2026-45087 is a critical-severity vulnerability in Hahwul Dalfox, classified under CWE-15. CVSS score: 10.0/10. Published 2026-05-27.
How severe is CVE-2026-45087?: Critical severity. CVSS v3 base score is 10.0 out of 10.