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CVE-2026-81034: Improper Certificate Validation in gravitl netmaker

0
High
VulnerabilityCVE-2026-81034cvecve-2026-81034
Published: 08/26/2026 (08/26/2026, 15:45:01 UTC)
Source: CVE Database V5
Vendor/Project: gravitl
Product: netmaker

Description

Netmaker disables certificate verification on the connection to the configured mail server. The sender in pro/email/smtp.go assigns a TLS configuration whose skip-verify field is set to true unconditionally, directly beneath a comment stating that the setting should be false in production. No configuration value governs it and no code path restores verification, so the client accepts any certificate the mail server presents, including one an interposing party supplies. Mail that Netmaker sends over that connection includes password-reset messages carrying single-use tokens and user invitations carrying enrolment links, so a party positioned on the path between the server and its mail relay can read those messages in transit and use a captured reset token before the intended recipient does. The setting is absent from the development branch but present in the latest release.

CVSS v4.0

Score 8.3high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
Low
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Affected software

GitHub Actionsmore threats →cve
netmaker
pkg:github/netmaker
Affected versions
<=1.6.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-08-26T15:23:07.420Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a8f0bddacd9273b4917df12

Added to database: 08/26/2026, 15:53:01 UTC

Last updated: 08/26/2026, 17:07:05 UTC

Views: 5

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