Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2026-101800

unauthorized data access via improper privilege controls

CVE-2026-101800: unauthorized data access via improper privilege controls. Not in the CISA KEV catalog. Critical advisory severity (CVSS 6.8, Red Hat).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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CVE-2026-101800 key facts

CISA KEV: Not listed (catalog checked Oct 30, 2026)
Highest advisory severity: Critical
CVSS base score: 6.8 (Red Hat)
Weakness: CWE-269
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Oct 23, 2026 · Updated Oct 30, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-101800; bulletin-wide values are not repeated here.

Is CVE-2026-101800 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-101800 is not in the CISA KEV catalog (checked Oct 30, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-101800?

To reduce exposure to this vulnerability, restrict network reachability to the MySQL database server so that only trusted hosts and application tiers can establish connections. 1. Restrict incoming traffic using firewalld to only authorized IP addresses: ```bash firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address=" " port port="3306" protocol="tcp" accept' firewall-cmd --reload ``` 2. If remote database connections are not required, bind the MySQL daemon to the local loopback interface by adding the following line under the `[mysqld]` section in `/etc/my.cnf` or `/etc/my.cnf.d/mysql-server.cnf`: ```ini [mysqld] bind-address = 127.0.0.1 ``` Apply the configuration change by restarting the daemon: ```bash systemctl restart mysqld ``` Caveats: Restricting access to specific addresses or binding to localhost prevents unauthorized hosts from reaching the service, but external applications requiring database access must be explicitly permitted. Warning: Modifying firewall rules or restarting the mysqld service will terminate existing database sessions and temporarily disrupt connectivity for running services. (Red Hat)

Vendor advisory comparison

NetApp

1 advisory

Advisory severityCritical9.8
Critical [CVE-2026-101607 +65] October 2026 MySQL Server 8.4.0, 9.7.0, 9.7.3 Vulnerabilities in NetApp Products
NTAP-20261030-0001Source published Oct 30, 2026Source updated Oct 30, 2026
This bulletin covers 66 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
MySQL Server versions 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7.0 through 26.7.1 are susceptible to vulnerabilities which, when successfully exploited, could allow an attacker with varying levels of access and privileges to compromise MySQL Server. Refer to the “Oracle Critical Patch Update Advisory - October 2026” for additional details. Successful attacks of these vulnerabilities can result in unauthorized access to some or all of MySQL Server accessible data, unauthorized ability to cause a Denial of Service (DOS) of MySQL Server or a takeover of MySQL Server. Affected products: SnapCenter. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status.
Affected products in this advisory
SnapCenter
Source-reported affected versions
8.4.0
8.4.12
9.7.0
9.7.3
2 more entries in the full advisory.
Source-reported fixed versions
No fixed-version detail extracted. This does not mean no fix exists.
Mitigation guidance
Refer to the “Oracle Critical Patch Update Advisory - October 2026” for additional details.
Workarounds
Full Support versions of SnapCenter Server allow MySQL software to be upgraded within documented constraints. Consult the product documentation for supported MySQL versions and other information related to the upgrade. <br><br> In Full Support versions of OnCommand Insight the MySQL software can be upgraded after acquiring updated OnCommand Insight binaries via technical support.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityMedium6.8
Medium [CVE-2026-101800] unauthorized data access via improper privilege controls
CVE-2026-101800Source published Oct 20, 2026Source updated Oct 20, 2026
unauthorized data access via improper privilege controls. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-269. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat package: mysql8.4.
Related products — impact not confirmed
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Red Hat package: mysql8.4
Source-reported affected versions
8.4.0-8
4.12
9.7.0-9
26.7.0-26
Source-reported fixed versions
No fixed-version detail extracted. This does not mean no fix exists.
Mitigation guidance
To reduce exposure to this vulnerability, restrict network reachability to the MySQL database server so that only trusted hosts and application tiers can establish connections. 1. Restrict incoming traffic using firewalld to only authorized IP addresses: ```bash firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<trusted_ip>" port port="3306" protocol="tcp" accept' firewall-cmd --reload ``` 2. If remote database connections are not required, bind the MySQL daemon to the local loopback interface by adding the following line under the `[mysqld]` section in `/etc/my.cnf` or `/etc/my.cnf.d/mysql-server.cnf`: ```ini [mysqld] bind-address = 127.0.0.1 ``` Apply the configuration change by restarting the daemon: ```bash systemctl restart mysqld ``` Caveats: Restricting access to specific addresses or binding to localhost prevents unauthorized hosts from reaching the service, but external applications requiring database access must be explicitly permitted. Warning: Modifying firewall rules or restarting the mysqld service will terminate existing database sessions and temporarily disrupt connectivity for running services.
Full advisory and evidence Open source bulletin

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