What is CVE-2026-33576?

CVE-2026-33576 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-03-31.

How severe is CVE-2026-33576?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Openclaw

CVE-2026-33576

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequently rejected.

Vulnerability class: Broken Access Control

EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Openclaw — versions 0, 2026.3.28

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

disclosure@vulncheck.com (vendor-advisory, Vendor Advisory, third-party-advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-33576?: CVE-2026-33576 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-03-31.
How severe is CVE-2026-33576?: Medium severity. CVSS v3 base score is 6.5 out of 10.