by Kastro
Paper/Archive/CVE-2026-50090

CVE-2026-50090

Aqara Cloud OAuth Authorization Endpoint — Aqara OAuth redirect_uri validation bypass

EPSS 0.2%public exploitCVSS 9.3
critical.is priorityof 100
41
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 15.9.159 × 203.2Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

The Aqara Cloud OAuth Authorization Endpoint (open-cn.aqara.com/oauth/authorize) is vulnerable to a redirect bypass due to lax controls on domain matching, which is an instance of "CWE-1289: Improper Validation of Unsafe Equivalence in Input" and has an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N (9.3 Critical).

Affected

ProductAffectedFixed inSource
Cloud OAuth Authorization Endpoint2026-04-20 – < 00CNA

Scores by source

runZero (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/xn0tsa/theres-no-place-like-homewriteuprunzero.com/advisories/aqara-oauth-redirect-validation-bypass-cve-2026-50090