high CVSS 8.4 EPSS 0.16%

CVE-2026-60163·MySQL vulnerability

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Server, MySQL Cluster executes to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Severity
high
Software
MySQL
Fixed in
8.0.46-0ubuntu0.22.04.4
Published

How likely is exploitation

FIRST's Exploit Prediction Scoring System puts the probability of this CVE being exploited in the next 30 days at 0.16% — higher than 6% of all published CVEs. EPSS is an independent forecast of exploitation, not a severity rating: it says nothing about how much damage a successful attack does, which is what a CVSS score measures.

Read the two together. CVE-2026-60163 scores 8.4 on CVSS, so a successful attack would be serious — but at 0.16%, almost nobody is currently attempting it. That is a different situation from a flaw under mass exploitation, and it is usually the difference between patching on your next maintenance window and patching tonight.

Affected versions

From: 8.4.0

Until: 8.4.10

Fixed in: 8.0.46-0ubuntu0.22.04.4

How to fix this CVE

This vulnerability affects the MySQL Group Replication plugin and allows local attackers with infrastructure access to achieve complete system compromise without authentication. Immediately upgrade MySQL Server to version 8.0.46 or later to patch the Group Replication component. Ensure all replicated instances in your cluster are updated in a coordinated manner to prevent replication failures.

sudo dnf update mysql-server

Defensia detects this vulnerability

How to check if you are affected

  1. Run `mysql --version` or connect to MySQL and execute `SELECT VERSION();` to identify the currently installed version
  2. Check if Group Replication is enabled by connecting to MySQL and running `SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME='group_replication';`
  3. Review MySQL error logs located at `/var/log/mysql/error.log` or the configured log path for any unauthorized connection attempts or Group Replication plugin initialization failures
  4. After patching, verify the new version with `mysql --version` and confirm Group Replication remains operational with `SHOW SLAVE STATUS\G` on replica nodes

FAQ

What is CVE-2026-60163?

CVE-2026-60163 is a local privilege escalation vulnerability in the MySQL Group Replication plugin that allows unauthenticated attackers with direct infrastructure access to compromise the entire MySQL Server and database cluster without requiring valid credentials.

Is CVE-2026-60163 being actively exploited?

No, there is currently no evidence of active exploitation in the wild according to CISA KEV data, and no public exploits are available.

What versions of MySQL are affected by CVE-2026-60163?

MySQL Server 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1 are affected, as well as MySQL Cluster 8.0.0-8.0.47 and 8.4.0-8.4.10.

How do I check if my server is vulnerable to CVE-2026-60163?

Connect to your MySQL instance and run `SELECT VERSION();` to retrieve the version number, then compare it against the affected ranges (8.4.0-8.4.10, 9.7.0-9.7.1). Additionally, check if Group Replication is enabled with `SELECT PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME='group_replication';`

Does Defensia detect CVE-2026-60163?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If MySQL is installed on a monitored server, CVE-2026-60163 will appear in your dashboard with remediation steps.

Related MySQL CVEs

CVE-2026-29080CVSS 8.8A SQL injection vulnerability in `FilterEngine.create_sqla_query()` allows any authenticated Rucio user to execute arbitrary SQL against the backend database through the DID search endpoint (`GET /dids/<scope>/dids/search`). On Oracle deployments attacker-controlled filter keys and values are interpolated directly into `sqlalchemy.text()` via Python `.format()`, completely bypassing parameterization. This enables full database compromise including extraction of authentication tokens, password hashes, and all managed data identifiers. This affects versions 1.27.0 and later before 35.8.5, 38.5.5, 39.4.2, and 40.1.1. The vulnerability exists in `lib/rucio/core/did_meta_plugins/filter_engine.py` within the `create_sqla_query()` method. When the database dialect is Oracle, filter expressions for JSON metadata columns are constructed using `text()` with Python string formatting. Both `key` and `value` are attacker-controlled strings derived from HTTP query parameters. The `text()` function creates a raw SQL fragment — it does **not** escape or parameterize its contents. Any authenticated Rucio user can exploit this through the DID search API to execute arbitrary SQL against the backend database. This can expose all managed data identifiers and sensitive tables such as identities, tokens, accounts, rse_settings, and rules, and may allow modification of database contents. The issue affects Oracle deployments using the default json_meta plugin and does not affect PostgreSQL or MySQL deployments using that plugin. This vulnerability has been fixed in versions 35.8.5, 38.5.5, 39.4.2, and 40.1.1.
CVE-2026-60315CVSS 8.2Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: X Plugin). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster and unauthorized read access to a subset of MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).
CVE-2026-46862CVSS 7.5Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
CVE-2026-46863CVSS 7.5Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
CVE-2026-61094CVSS 7.2Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

References

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