Allocation of Resources Without Limits or Throttling Affecting libmysqlclient package, versions [,8.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published23 Jan 2026
- disclosed20 Jan 2026
- creditAnton Fedorov
Introduced: 20 Jan 2026
CVE-2026-21968 (opens in a new tab)How to fix?
Upgrade libmysqlclient to version 8.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the Optimizer component. An attacker can cause the application to hang or crash repeatedly by sending specially crafted requests over the network while authenticated with low privileges.