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| ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
|---|---|---|---|---|---|---|---|---|---|
| 120273 | 2026-04-15 15:39 | 2026-04-16 22:33 | MySQL Server: Memory storage engine | Verified (46 days) | S2 | 8.0.45 | Ubuntu (22.04) | x86 | Incorrect COUNT result when "SET SESSION internal_tmp_mem_storage_engine = MEMORY" is used |
| 120274 | 2026-04-16 5:53 | 2026-05-12 6:59 | MySQL Server: Connection Handling | Open | S2 | 8.4.6 | Red Hat (Rocky Linux 8.8) | x86 (4.18.0-477.27.1.el8_8.x86_64) | Specific account authentication permanently fails with "Public Key Retrieval is not allowed" after FLUSH PRIVILEGES |
| 120275 | 2026-04-16 7:10 | 2026-04-20 6:51 | MySQL Server: Optimizer | Verified (42 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | DATE Index Lookup Loses Existing JOIN Matches Even with Explicit CAST(MEDIUMTEXT AS DATE), Causing S1/S2 Divergence |
| 120278 | 2026-04-17 2:44 | 2026-05-12 2:31 | MySQL Server: Replication | Open (20 days) | S2 | 8.0.44 8.4.9 | Any | Any | mts_event_coord_cmp() uses strcmp() for binlog filename comparison, causing incorrect ordering when binlog index exceeds |
| 120279 | 2026-04-17 7:23 | 2026-04-17 14:09 | MySQL Server: Optimizer | Verified (45 days) | S3 | 8.0.43 (MySQL Community Server - GPL) | Any | Any | Severe performance degradation with window function + joins (works fast in PostgreSQL/DuckDB/TiDB) |
| 120281 | 2026-04-17 9:21 | 2026-04-17 11:32 | MySQL Server: Replication | Open (45 days) | S2 | 8.0.42 | Linux (any) | Any | replica_preserve_commit_order causes infinite deadlock in group commit pipeline, blocking all application writes |
| 120284 | 2026-04-18 15:46 | 2026-04-20 7:33 | MySQL Server: Optimizer | Verified (42 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized `IN (subquery)` Loses VARCHAR-to-YEAR Coercion,Causing Plan-Dependent Result Divergence |
| 120285 | 2026-04-18 15:49 | 2026-04-18 15:54 | MySQL Server: Optimizer | Open (44 days) | S2 | 8.0.45 | Ubuntu (Ubuntu 20.04.4 LTS) | x86 (Intel(R) Xeon(R) Platinum 8358P @ 2.60GHz (64 Cores, 96MB L3 Cache)) | Materialized Semijoin + Outer ORDER BY Loses Rows for Correlated EXISTS,Causing Plan-Dependent Result Divergence |
| 120286 | 2026-04-19 5:14 | 2026-04-20 7:53 | MySQL Server: Optimizer | Verified (42 days) | S2 | 8.0.45 | Any | Any | `SUM(DISTINCT pk)` returns `NULL` with a window function when a secondary index is used for group-by scanning |
| 120287 | 2026-04-19 10:18 | 2026-04-19 10:20 | MySQL Workbench: Modeling | Open | S3 | 8.0 CE | Any | Any | Non-identifying relationships show up as identifying relationships |
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