CVE-2026-101777
Description
A flaw was found in the MySQL security encryption component. A remote attacker with high privileges can exploit this vulnerability over network protocols to cause the service to hang or crash repeatedly, resulting in a complete Denial of Service (DoS). Additionally, successful exploitation can allow unauthorized read access to a subset of data accessible to the server.
Statement
This vulnerability is rated as having Moderate impact because exploitation demands high-level administrative privileges over network protocols, which restricts the potential threat to authenticated users rather than arbitrary remote actors. Furthermore, supported Red Hat Enterprise Linux releases are not affected as the vulnerable encryption codebase is not included in the distributed MySQL packages.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | 5.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | High | N/A | High |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
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