# CVE-2026-75092: Red Hat leapp-repository privilege escalation in scan_mysql

Source: https://junglewise.ai/threats/cve-2026-75092-red-hat-leapp-repository-privilege-escalation-in-scan-mysql  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-75092 · Severity: high · CVSS 7.3 · Published 2026-09-15

Leapp-repository is a tool Red Hat provides to automate upgrades from RHEL 9 to RHEL 10. A flaw in the scan_mysql component runs MySQL configuration validation as root instead of the unprivileged mysql user, allowing an attacker with mysql-level OS access to load malicious code that executes with root privileges during the upgrade process. An administrator performing a documented upgrade workflow would unknowingly trigger attacker-controlled code with full system privileges.

Technologies: [Red Hat Enterprise Linux](https://junglewise.ai/threats/technologies/red-hat-enterprise-linux). Vendors: [Red Hat](https://junglewise.ai/threats/vendors/red-hat).

## Quick answers

**Is CVE-2026-75092 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-75092 being exploited in the wild.

**How severe is CVE-2026-75092?** High severity, with a CVSS score of 7.3, published 15 September 2026.

**Which products and versions are affected?** Red Hat Leapp-Repository before 0.24.0-1.el9_8.1; Red Hat Enterprise Linux 9.

**Is there a fix for CVE-2026-75092?** A patch was published on 2026-09-15: RHSA-2026:67608 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-75092 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-75092?** Check whether you run Red Hat Leapp-Repository or Red Hat Enterprise Linux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a privilege escalation in the scan_mysql actor of leapp-upgrade-el9toel10. The root cause is improper privilege handling: the actor invokes mysqld --validate-config --log-error-verbosity=2 directly as root, bypassing the systemd unit that normally drops to User=mysql. An attacker with OS-level access as the mysql user can write a malicious mysqld-auto.cnf configuration file and shared object to /var/lib/mysql (owned by mysql), configuring MySQL to load the attacker's plugin via plugin_dir and early_plugin_load directives. When an administrator runs the documented Leapp preupgrade or upgrade workflow, the plugin loads with dlopen() before MySQL validates the plugin origin or checks the runtime user, resulting in arbitrary code execution as UID 0 with full capabilities in an unconfined SELinux context. Patches are available via RHSA-2026:67608.

## Affected products

- Red Hat leapp-repository before 0.24.0-1.el9_8.1
- Red Hat Red Hat Enterprise Linux 9

## Timeline

- 2026-09-15: disclosed
- 2026-09-15: patched: RHSA-2026:67608 released

## References

- [https://access.redhat.com/downloads/content/package-browser/](https://access.redhat.com/downloads/content/package-browser/)
- [https://access.redhat.com/errata/RHSA-2026:67608](https://access.redhat.com/errata/RHSA-2026:67608)

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