CVE-2026-33576 MEDIUM

CVE-2026-33576: OpenClaw < 2026.3.28 - Unauthorized Media Download via Zalo Channel

Vendor Openclaw
Product OpenClaw
Weakness CWE-863 · Incorrect authorization
Published March 31, 2026
Last update April 2, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
April 2, 2026 Record updated