Not ratedosv:RLSA-2026:99741

    Important: mysql:8.4 security update

    Published Sources: OSV

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    What is affected, what to do

    The available sources name no fixed version. Check the vendor guidance and the linked original advisory.

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    Metrics

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    XIEM Effective CVSS

    No value is available for this vulnerability.

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    CVSS v3

    No value is available for this vulnerability.

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    EPSS score

    No value is available for this vulnerability.

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    Severity
    Not rated
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

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    30.00 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

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    no public PoC known
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

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    Published

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

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    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

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    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

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    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.

    Security Fix(es):

    • mysql: mysql: system takeover via mysqldump component (CVE-2026-101797)

    • mysql: mysql: unauthorized server takeover (CVE-2026-101772)

    • mysql: mysql: Denial of Service in InnoDB component (CVE-2026-101724)

    • mysql: mysql: Denial of Service via client programs (CVE-2026-101754)

    • mysql: mysql: System takeover via client programs (CVE-2026-101770)

    • mysql: mysql: Denial of Service in Server Optimizer (CVE-2026-101732)

    • mysql: mysql: Denial of Service via server optimizer flaw (CVE-2026-101623)

    • mysql: mysql: Denial of Service via the Replication component (CVE-2026-101727)

    • mysql: mysql: Denial of Service via the audit component (CVE-2026-101748)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101747)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101617)

    • mysql: mysql: Denial of Service in Server Optimizer (CVE-2026-101607)

    • mysql: mysql: Complete server takeover via replication component (CVE-2026-101796)

    • mysql: mysql: Denial of Service (CVE-2026-101778)

    • mysql: MySQL Server: Denial of service in the Server Optimizer (CVE-2026-101731)

    • mysql: mysql: Denial of Service in Group Replication plugin (CVE-2026-101776)

    • mysql: mysql: Denial of service in InnoDB (CVE-2026-101609)

    • mysql: mysql: Denial of service in InnoDB (CVE-2026-101760)

    • mysql: mysql: unauthorized data modification via replication component (CVE-2026-101775)

    • mysql: mysql: Denial of Service via Server Optimizer component (CVE-2026-101610)

    • mysql: mysql: Denial of Service via the C API (CVE-2026-101726)

    • mysql: mysql: unauthorized data modification via XML component (CVE-2026-101803)

    • mysql: mysql: Denial of Service in Group Replication (CVE-2026-101751)

    • mysql: mysql: Denial of Service via Server Optimizer flaw (CVE-2026-101787)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101619)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101622)

    • mysql: mysql: Denial of Service via the Optimizer component (CVE-2026-101789)

    • mysql: mysql: Denial of service in replication component (CVE-2026-101766)

    • mysql: mysql: Denial of Service in Clone Plugin (CVE-2026-101750)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101618)

    • mysql: mysql: Denial of Service via the Server Replication component (CVE-2026-101729)

    • mysql: MySQL: Denial of Service via the Group Replication plugin (CVE-2026-101773)

    • mysql: mysql: Denial of Service via security encryption component (CVE-2026-101762)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101611)

    • mysql: mysql: unauthorized data access via improper privilege controls (CVE-2026-101800)

    • mysql: mysql: Partial Denial of Service via Telemetry component (CVE-2026-101779)

    • mysql: mysql: Denial of Service via Group Replication GCS (CVE-2026-101799)

    • mysql: mysql: Denial of service in InnoDB (CVE-2026-101615)

    • mysql: mysql: Denial of Service via the Server Parser (CVE-2026-101802)

    • mysql: mysql: Denial of Service in InnoDB component (CVE-2026-101627)

    • mysql: mysql: Denial of Service via Server Optimizer component (CVE-2026-101730)

    • mysql: mysql: Denial of Service via JSON component (CVE-2026-101733)

    • mysql: mysql: Denial of Service via the C API component (CVE-2026-101725)

    • mysql: mysql: Denial of Service via security encryption component (CVE-2026-101761)

    • mysql: mysql: Denial of Service in InnoDB (CVE-2026-101621)

    • mysql: mysql: Denial of Service via Server Optimizer component (CVE-2026-101608)

    • mysql: mysql: Denial of Service in Server Components Services (CVE-2026-101721)

    • mysql: mysql: Denial of service via DDL component (CVE-2026-101613)

    • mysql: mysql: Denial of Service via multiple protocols (CVE-2026-101679)

    • mysql: mysql: Denial of Service via X Plugin (CVE-2026-101780)

    • mysql: mysql: Denial of Service via Server Components Services (CVE-2026-101788)

    • mysql: mysql: Denial of Service via XML component flaw (CVE-2026-101794)

    • mysql: mysql: Denial of Service in Pluggable Auth (CVE-2026-101728)

    • mysql: mysql: Denial of Service in Server Optimizer (CVE-2026-101801)

    • mysql: MySQL: Denial of Service via JSON component (CVE-2026-101616)

    • mysql: mysql: complete service takeover via network access (CVE-2026-101771)

    • mysql: mysql: Denial of Service in InnoDB component (CVE-2026-101612)

    • mysql: mysql: Denial of Service in InnoDB component (CVE-2026-101614)

    • mysql: mysql: Complete service compromise by a local privileged attacker (CVE-2026-101795)

    • mysql: mysql: Server takeover via Group Replication GCS (CVE-2026-101781)

    • mysql: mysql: Denial of Service in the server optimizer (CVE-2026-101798)

    • mysql: mysql: Denial of service via InnoDB storage engine (CVE-2026-101624)

    • mysql: mysql: Denial of service via Pluggable Authentication component (CVE-2026-101774)

    • mysql: MySQL: Unauthorized data modification in JSON component (CVE-2026-101785)

    • mysql: mysql: Denial of service in query optimizer (CVE-2026-101784)

    • rapidjson: rapidjson: Denial of Service via out-of-bounds read in regex parser (CVE-2026-116620)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    Source: OSV (Open Source Vulnerabilities)