CVE-2026-50090Public exploitNetwork attack vector

Authorization-code theft via suffix-matched redirect URI

Published Jun 12, 2026 · Updated Jun 12, 2026

OAuth redirect validation bypass in Aqara Cloud OAuth Authorization Endpoint allows remote attackers to steal authorization codes. The /oauth/authorize handler accepts any redirect_uri whose hostname string ends in aqara.com, so aqara.com.evil.example.com passes and receives the code. A victim must grant consent through a valid client integration; the stolen code enables access-token issuance and account takeover.

CVSS severity9.3
Critical
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OAuth redirect validation bypass in Aqara Cloud OAuth Authorization Endpoint allows remote attackers to steal authorization codes. The /oauth/authorize handler accepts any redirect_uri whose hostname string ends in aqara.com, so aqara.com.evil.example.com passes and receives the code. A victim must grant consent through a valid client integration; the stolen code enables access-token issuance and account takeover.

The record

CVE
CVE-2026-50090
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Aqara
Product
Aqara Cloud OAuth Authorization Endpoint
Classifications
CWE-1289, T1528
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2026-04-20 <0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Aqara · Aqara Cloud OAuth Authorization Endpointversion=2026-04-20 <0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
9.3runZeroCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1289Improper Validation of Unsafe Equivalence in Input
T1528Steal Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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