Medium

CVE-2026-101626 — Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Net). The...

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Net). The supported version that is affected is 26.7.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Published Oct 20, 2026 · Updated Oct 21, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: oracle

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.3% (30-day exploitation probability)+4
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.32%

ahead of 24% of scored CVEs · Oct 21, 2026

Affects

Oracle

Mysql Connectors

CVSS base

5.9

Medium · 3 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Oracle Mysql Connectors).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Oracle	Mysql Connectors	version 26.7.0	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

High

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
5.9	CVSS 3.1	Medium	2.2	3.6	secalert_us@oracle.com via NIST National Vulnerability Database
5.9	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
5.9	CVSS 3.1	Medium	—	—	oracle via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: secalert_us@oracle.com)

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).

web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

2026
SSVC assessment updated
Oct 21, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · Received → Awaiting Analysis
Oct 21, 2026 · NIST National Vulnerability Database
Affected products added · oracle corporation/mysql connectors
Oct 20, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 20, 2026
CVSS changed · 5.9
Oct 20, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 20, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 20, 2026 · Alertas do Telegram
CVE published
Oct 20, 2026 · oracle

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 20, 2026 – Oct 21, 2026
1× Official description updated · Oct 20, 2026 – Oct 20, 2026

References

3 on the record

nvd.nist.gov/vuln/detail/CVE-2026-101626
GitHub Security Advisories
github.com/advisories/GHSA-3g6c-mqw2-6j9j
GitHub Security Advisories
www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory, NIST National Vulnerability Database

Elsewhere on this site

Oracle
every CVE for this vendor

Related CVEs (same products)

High CVE-2026-83404 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Python). ... 21h
Medium CVE-2026-101806 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/ODBC). The... 21h
Low CVE-2026-101804 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/ODBC). The... 21h
High CVE-2026-101768 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). The... 21h
Medium CVE-2026-101678 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). The... 21h
Medium CVE-2026-101677 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). The... 21h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-101626 is "Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Net). The...", rated Medium. It affects Mysql Connectors (Oracle); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.9 describes technical severity. EPSS 0.32% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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