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rlsa-2026:20693
Vulnerability from osv_rocky
Published
2026-06-04 12:04
Modified
2026-06-18 12:06
Summary
Moderate: mysql8.4 security update
Details
MySQL is a multi-user, multi-threaded SQL database server. MySQL is a client/server implementation consisting of a server daemon (mysqld) and many different client programs and libraries. The base package contains the standard MySQL client programs and generic MySQL files.
Security Fix(es):
-
mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-22004)
-
mysql: Information Schema unspecified vulnerability (CPU Apr 2026) (CVE-2026-22001)
-
mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34271)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22009)
-
mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35237)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-21998)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22005)
-
mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35238)
-
mysql: DML unspecified vulnerability (CPU Apr 2026) (CVE-2026-35239)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22002)
-
mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35236)
-
mysql: JSON unspecified vulnerability (CPU Apr 2026) (CVE-2026-34308)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-34303)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-35240)
-
mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22017)
-
mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-34304)
-
mysql: Information Schema unspecified vulnerability (CPU Apr 2026) (CVE-2026-22015)
-
mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34276)
-
mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34270)
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.
Severity
6.5 (Medium)
References
{
"affected": [
{
"package": {
"ecosystem": "Rocky Linux:10",
"name": "mysql8.4",
"purl": "pkg:rpm/rocky-linux/mysql8.4?distro=rocky-linux-10\u0026epoch=0"
},
"ranges": [
{
"database_specific": {
"yum_repository": "AppStream"
},
"events": [
{
"introduced": "0"
},
{
"fixed": "0:8.4.9-1.el10_2.rocky.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"credits": [
{
"name": "Rocky Enterprise Software Foundation"
},
{
"name": "Red Hat"
}
],
"details": "MySQL is a multi-user, multi-threaded SQL database server. MySQL is a client/server implementation consisting of a server daemon (mysqld) and many different client programs and libraries. The base package contains the standard MySQL client programs and generic MySQL files.\n\nSecurity Fix(es):\n\n* mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-22004)\n\n* mysql: Information Schema unspecified vulnerability (CPU Apr 2026) (CVE-2026-22001)\n\n* mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34271)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22009)\n\n* mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35237)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-21998)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22005)\n\n* mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35238)\n\n* mysql: DML unspecified vulnerability (CPU Apr 2026) (CVE-2026-35239)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22002)\n\n* mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-35236)\n\n* mysql: JSON unspecified vulnerability (CPU Apr 2026) (CVE-2026-34308)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-34303)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-35240)\n\n* mysql: Optimizer unspecified vulnerability (CPU Apr 2026) (CVE-2026-22017)\n\n* mysql: InnoDB unspecified vulnerability (CPU Apr 2026) (CVE-2026-34304)\n\n* mysql: Information Schema unspecified vulnerability (CPU Apr 2026) (CVE-2026-22015)\n\n* mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34276)\n\n* mysql: Group Replication Plugin unspecified vulnerability (CPU Apr 2026) (CVE-2026-34270)\n\nFor 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.",
"id": "RLSA-2026:20693",
"modified": "2026-06-18T12:06:11.500768Z",
"published": "2026-06-04T12:04:37.164871Z",
"references": [
{
"type": "ADVISORY",
"url": "https://errata.rockylinux.org/RLSA-2026:20693"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460348"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460275"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460326"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460324"
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},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460279"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460329"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460316"
},
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460274"
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460358"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460312"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460315"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460342"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460276"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460323"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460295"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460344"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460356"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460335"
}
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Moderate: mysql8.4 security update",
"upstream": [
"CVE-2026-21998",
"CVE-2026-22001",
"CVE-2026-22002",
"CVE-2026-22004",
"CVE-2026-22005",
"CVE-2026-22009",
"CVE-2026-22015",
"CVE-2026-22017",
"CVE-2026-34270",
"CVE-2026-34271",
"CVE-2026-34276",
"CVE-2026-34303",
"CVE-2026-34304",
"CVE-2026-34308",
"CVE-2026-35236",
"CVE-2026-35237",
"CVE-2026-35238",
"CVE-2026-35239",
"CVE-2026-35240"
]
}
CVE-2026-21998 (GCVE-0-2026-21998)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:34 – Updated: 2026-04-22 14:03
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:03 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
Affected: 8.4.0 , ≤ 8.4.8 (custom) Affected: 9.0.0 , ≤ 9.6.0 (custom) cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-22001 (GCVE-0-2026-22001)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 14:07
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Information Schema). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 2.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:07 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data.
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
Affected: 8.4.0 , ≤ 8.4.8 (custom) Affected: 9.0.0 , ≤ 9.6.0 (custom) cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-22002 (GCVE-0-2026-22002)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 14:09
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:09 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
Affected: 8.4.0 , ≤ 8.4.8 (custom) Affected: 9.0.0 , ≤ 9.6.0 (custom) cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
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CVE-2026-22004 (GCVE-0-2026-22004)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 14:11
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:11 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-22005 (GCVE-0-2026-22005)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 14:12
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:11 UTC
CWE
- Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-22009 (GCVE-0-2026-22009)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 13:36
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:36 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
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|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-22015 (GCVE-0-2026-22015)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 13:35
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Information Schema). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:34 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data.
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-22017 (GCVE-0-2026-22017)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 14:12
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 14:12 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-34270 (GCVE-0-2026-34270)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 13:54
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:54 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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CVE-2026-34271 (GCVE-0-2026-34271)
Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-22 13:53
VLAI
EPSS
VEX
Summary
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 13:53 UTC
CWE
- Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | MySQL Server |
Affected:
8.0.0 , ≤ 8.0.45
(custom)
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"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "8.0.45",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "8.4.8",
"versionStartIncluding": "8.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.6.0",
"versionStartIncluding": "9.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en-US",
"value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.",
"lang": "en-US"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-21T20:35:15.651Z",
"orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"shortName": "oracle"
},
"references": [
{
"name": "Oracle Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://www.oracle.com/security-alerts/cpuapr2026.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
"assignerShortName": "oracle",
"cveId": "CVE-2026-34271",
"datePublished": "2026-04-21T20:35:15.651Z",
"dateReserved": "2026-03-26T19:48:45.674Z",
"dateUpdated": "2026-04-22T13:53:09.216Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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