TI-2026-78110 Aliases CVE-2026-101810 GHSA-g27m-pm8c-59g5

Denial of service in Oracle MySQL Router by network attackers

LOW 39CWE-284Published 2026-10-20 · Updated 2026-10-22

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

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

Summary

Oracle MySQL Router from 26.7.0 is affected. The flaw is an improper access control issue (CWE-284) that lets an unauthenticated attacker with network access over multiple protocols hang or repeatedly crash MySQL Router, causing a complete denial of service. No privileges or user interaction are needed, and the impact is limited to availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). 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 Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00486 42nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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 Router	26.7.0	—	No fix listed	CNA

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

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:mysql_router::::::::	—	—	Oracle

cpe:2.3:a:oracle:mysql_router:*:*:*:*:*:*:*:* Versions — — ·Oracle

Remediation

The sources list no fixed version for MySQL Router.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

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 Router — oracle.com/security-alerts/cpuoct2026.html
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-78083 Improper access control in Oracle MySQL RouterPriority LOW 34
- TI-2026-77938 Improper access control in Oracle MySQL Router lets attackers modify dataPriority LOW 32
- TI-2026-77940 Oracle MySQL Router improper access control allows unauthorized readsPriority LOW 20
Show all 5 records → Advisory →

Timeline

2026-10-21 Threatist record created from CVE-2026-101810
2026-10-21 Alias added: GHSA-g27m-pm8c-59g5
2026-10-22 Priority changed: MEDIUM → LOW
2026-10-22 Weakness changed · CISA ADP
2026-10-22 CISA SSVC decision points changed
2026-10-22 CISA SSVC decision points changed

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