How severe is CVE-2026-50090?

CVE-2026-50090 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-50090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-50090?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-50090 have an EU (EUVD) identifier?

Yes. CVE-2026-50090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36480.

When was CVE-2026-50090 published?

CVE-2026-50090 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-50090

CVE-2026-50090 is a critical-severity vulnerability with a CVSS 3.x base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1289.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36480
Weakness: CWE-1289
Published: 2026-06-12
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is CVE-2026-50090?: 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).
How severe is CVE-2026-50090?: CVE-2026-50090 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-50090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-50090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-50090 have an EU (EUVD) identifier?: Yes. CVE-2026-50090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36480.
When was CVE-2026-50090 published?: CVE-2026-50090 was published on 2026-06-12 and last updated on 2026-06-17.

References

Other CWE-1289 vulnerabilities

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