What is CVE-2026-33359?

CVE-2026-33359 is a high-severity vulnerability in Meari Alibaba Oss Hosted, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-05-11.

How severe is CVE-2026-33359?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Meari Alibaba Oss Hosted

CVE-2026-33359

In Meari IoT Cloud alert image storage on Alibaba OSS (latest observed; storage service version not disclosed), motion snapshots are retrievable without authentication, signed URLs, or expiry enforcement. URLs function as direct object ref…

Vulnerability class: Broken Access Control

EPSS: 0.001 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Meari Alibaba Oss Hosted — versions April, 2026

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

44488dab-36db-4358-99f9-bc116477f914 (technical-description)
44488dab-36db-4358-99f9-bc116477f914 (third-party-advisory)

Frequently asked questions

What is CVE-2026-33359?: CVE-2026-33359 is a high-severity vulnerability in Meari Alibaba Oss Hosted, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-05-11.
How severe is CVE-2026-33359?: High severity. CVSS v3 base score is 7.5 out of 10.