VulnerabilityPublished 23 Oct 2026Updated 27 Oct 2026

CVE-2026-101677: Mysql 5.5 · (Vulnerability in the MySQL Connectors product of Oracle MySQL (compone ...)

Affects mysql-5.5Source GCVE Database

Authoritative record:CVE-2026-101677· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium.

Data as of 27 Oct 2026, 08:46 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Ubuntu 20.04 LTSmariadb-10.3`pkg:deb/ubuntu/mariadb-10.3?arch=source&distro=focal`Other threats	Affected 1:10.3.17-1 – 1:10.3.39-0ubuntu0.20.04.2 15 affected builds	Fixed in–
Ubuntu Pro 18.04 LTSmysql-5.7`pkg:deb/ubuntu/mysql-5.7?arch=source&distro=esm-infra/bionic`Other threats	Affected 5.7.19-0ubuntu1 – 5.7.44-0ubuntu0.18.04.1+esm1 28 affected builds	Fixed in–
Ubuntu Pro 16.04 LTSmysql-5.7`pkg:deb/ubuntu/mysql-5.7?arch=source&distro=esm-infra/xenial`Other threats	Affected 5.7.11-0ubuntu4 – 5.7.44-0ubuntu0.16.04.1+esm1 36 affected builds	Fixed in–
Ubuntu 14.04 LTSmysql-5.5`pkg:deb/ubuntu/mysql-5.5?arch=source&distro=trusty`Other threats	Affected 5.5.32-0ubuntu7 – 5.5.62-0ubuntu0.14.04.1 25 affected builds	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a patch is available, users should consider limiting exposure of affected MySQL instances to untrusted networks and avoid user actions that could trigger the vulnerability.

Description

A medium severity vulnerability (CVE-2026-101677) affects specific Ubuntu-packaged versions of MySQL 5.5, related to the MySQL Connectors component. The vulnerability has a CVSS 3.1 base score of 4.3, indicating a network attack vector with low complexity and no privileges required, but requires user interaction. The impact is limited to low integrity impact with no confidentiality or availability impact. No public exploits or known active exploitation have been reported. No patch or remediation information is provided in the available data.

Impact

The vulnerability allows an attacker to cause a low integrity impact remotely without privileges, requiring user interaction. There is no impact on confidentiality or availability. No known exploits are reported in the wild, reducing immediate risk.

Summary

CVE-2026-101677 is a vulnerability in the MySQL Connectors product of Oracle MySQL affecting multiple Ubuntu-packaged versions of MySQL 5.5. The CVSS 3.1 vector indicates the vulnerability can be exploited remotely over the network without privileges but requires user interaction. The impact is limited to integrity with no confidentiality or availability impact. The affected versions are specific Ubuntu builds of MySQL 5.5.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Oct 2026, 08:46 UTC

Technical details

References

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