CVE-2026-18678 | BDVDB-2026-358288 Detail

KongKong Mesh

Description#

When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and sends API tokens over the unverified connection. An attacker on the network path between the operator and the control plane can intercept user or admin API tokens and then act against the control plane as that user.

Impact#

Credential interception

Weaknesses#

CWE-295 Improper Certificate Validation

References#

Exploit#

No public exploit known

History#

Version 12026-08-12Record published in the CVE List.
Version 22026-08-13Most recent update recorded in the CVE List.

Published

Published: 2026-08-12
Last modified: 2026-08-13

Vendor information

Vendor: Kong
Product: Kong Mesh

All Kong vulnerabilities

Score

5.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 2.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.7.26
Fixed
2.7.26
Vulnerable
>= 2.8.0 and < 2.9.16
Fixed
2.9.16
Vulnerable
>= 2.10.0 and < 2.11.14
Fixed
2.11.14
Vulnerable
>= 2.12.0 and < 2.12.11
Fixed
2.12.11
Vulnerable
>= 2.13.0 and < 2.13.7
Fixed
2.13.7

Scoring System

CVSS v4.0

5.5 Medium

CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	High
Attack Requirements	Present
Privileges Required	None
User Interaction	Passive
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	None
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).