Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Network-reachable unauthenticated HTTP interface (AV:N/PR:N/UI:N) but a non-trivial precondition drives AC:H; high read/write data impact (C:H/I:H) with no availability effect (A:N).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.10 and 9.7.0-9.7.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Router accessible data as well as unauthorized access to critical data or complete access to all MySQL Router accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Data compromise in Oracle MySQL Router 8.4.0-8.4.10 and 9.7.0-9.7.1 allows a network attacker to gain unauthorized read and write access to all data reachable through the Router component. The flaw is reachable unauthenticated over HTTP (PR:N) but is rated hard to exploit (AC:H), and there is no public exploit identified at time of analysis. Oracle's tagging references an authentication-bypass class of issue, consistent with the unauthenticated network vector.
Technical ContextAI
MySQL Router is the lightweight connection-routing and load-balancing middleware in Oracle's MySQL InnoDB Cluster / ReplicaSet stack; it sits between application clients and backend MySQL servers and exposes an HTTP-based management/REST interface (used for its REST API and metrics/health endpoints). The vulnerability is in the 'Router: General' component and is reached 'via HTTP', which points at this embedded HTTP interface rather than the MySQL wire protocol. Oracle did not assign a CWE (CWE: N/A), but the vendor tag 'Authentication Bypass' suggests the root cause is a broken or missing authentication/authorization check on that HTTP surface, allowing an unauthenticated caller to reach protected functionality that governs data flowing through the Router.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) - Patch available per vendor advisory; an exact fixed build number is not stated in the provided data, so consult the CPU matrix for the precise patched release above 8.4.10 and 9.7.1 for your branch. Until patched, reduce exposure of the Router's HTTP/REST management interface: bind it to localhost or a trusted management network and firewall the REST/HTTP port so it is not reachable from application or untrusted networks (trade-off: remote monitoring/automation against that endpoint breaks and must be re-homed to the trusted segment). If the HTTP REST interface is not required, disable it in the Router configuration to remove the attack surface entirely (trade-off: loss of REST-based status/metrics integration). Do not rely solely on network controls as a permanent fix - schedule the vendor patch.
More in Mysql Router
View allRemote takeover of Oracle MySQL Router 9.0.0 through 9.7.0 is possible by unauthenticated attackers reaching the Router
Denial of service in Oracle MySQL Router 8.4.0-8.4.9 and 9.0.0-9.7.0 allows unauthenticated remote attackers to hang or
Denial-of-service in Oracle MySQL Router (versions 8.4.0-8.4.10 and 9.7.0-9.7.1) allows a remote unauthenticated attacke
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-47069
GHSA-4rrq-wr4q-fg4w