TI-2026-77981 Aliases CVE-2026-101678 GHSA-mp57-mq2j-fxq6

Improper access control in Oracle MySQL Connector/J allows partial DoS

LOW 20CWE-284Published 2026-10-20 · Updated 2026-10-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · None · Low
Fix status: Deferred Red Hat: fix deferred

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-284.

Summary

The supported version 26.7.0 of Oracle MySQL Connectors (component Connector/J) is affected. The flaw is improper access control (CWE-284). An unauthenticated remote attacker with network access can partially deny service to MySQL Connectors, and a person other than the attacker must interact for the attack to succeed.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Connectors. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00354 29th percentileScored 2026-11-07

Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Oracle	MySQL Connectors	26.7.0	—	No fix listed	CNA

MySQL Connectors VendorOracle Affected 26.7.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Oracle MySQL Connectors. Red Hat lists Red Hat Enterprise Linux 6 and Red Hat Fuse 7 with no fix planned, and Red Hat Enterprise Linux 7 and Red Hat Enterprise Linux 9 with no fix available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-10-20
Oracle MySQL Connectors — oracle.com/security-alerts/cpuoct2026.html
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2026-77114 Missing authentication in Oracle MySQL Connector/PythonPriority LOW 39
- TI-2026-78068 Improper access control in Oracle MySQL Connectors enables takeoverPriority LOW 38
- TI-2026-78106 Improper access control in Oracle MySQL Connectors ODBC componentPriority LOW 32
Show all 8 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Red Hat Fuse 7	Affected	No fix planned: Out of support scope

Timeline

2026-10-21 Threatist record created from CVE-2026-101678
2026-10-21 Alias added: GHSA-mp57-mq2j-fxq6
2026-10-21 Weakness changed · CISA ADP
2026-10-21 CISA SSVC decision points changed
2026-11-02 Affected versions changed · Red Hat
2026-11-02 CVSS score added · Red Hat

References

Advisory 1

Oracle Advisory

TI-2026-34425 Improper privilege management in Oracle Payments KEVCVSS 3.1CRITICAL 9.8
TI-2026-27421 Missing authentication in Oracle PeopleSoft Enterprise PeopleTools KEVCVSS 3.1CRITICAL 9.8
TI-2026-17661 Improper access control in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in KEVCVSS 3.1CRITICAL 10.0
TI-2025-38252 Improper authentication in Oracle Concurrent Processing KEVCVSS 3.1CRITICAL 9.8
TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8

See all 14200 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences