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CVE-2026-47012 is a vulnerability in the Optimizer component of Oracle MySQL Server and MySQL Cluster. Affected versions are MySQL Server 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1, and MySQL Cluster 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1. The issue is described as difficult to exploit and is reachable over the network via multiple protocols by a high-privileged attacker. Successful exploitation can compromise availability by triggering a server hang or a frequently repeatable crash in the database service. Publicly available material does not provide sufficient technical detail to identify the exact vulnerable function or root cause within the Optimizer.
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No public exploit code observed for this vulnerability.
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12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Specific vulnerability referenced in an AlmaLinux security advisory/plugin, but no technical description is provided in the content.
A vulnerability referenced in Oracle Linux ELSA-2026-56936 affecting Oracle Linux 8 packages; no further technical details are provided in the content.
A vulnerability referenced in an Oracle Linux ELSA-2026-56973 security advisory affecting Oracle Linux 9 packages; the specific flaw type is not described in the content.
A vulnerability referenced by an AlmaLinux security advisory affecting MySQL 8.4 packages on AlmaLinux 10; specific technical details are not provided in the content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.