linode terraform-provider-linode up to 3.8.x log file

Summaryinfo

A vulnerability marked as problematic has been reported in linode terraform-provider-linode up to 3.8.x. Affected by this issue is some unknown functionality. This manipulation causes log file. This vulnerability appears as CVE-2026-27900. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in linode terraform-provider-linode up to 3.8.x and classified as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a log file vulnerability. The CWE definition for the vulnerability is CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. As an impact it is known to affect confidentiality. The summary by CVE is:

The Terraform Provider for Linode versions prior to v3.9.0 logged sensitive information including some passwords, StackScript content, and object storage data in debug logs without redaction. Provider debug logging is not enabled by default. This issue is exposed when debug/provider logs are explicitly enabled (for example in local troubleshooting, CI/CD jobs, or centralized log collection). If enabled, sensitive values may be written to logs and then retained, shared, or exported beyond the original execution environment. An authenticated user with access to provider debug logs (through log aggregation systems, CI/CD pipelines, or debug output) would thus be able to extract these sensitive credentials. Versions 3.9.0 and later sanitize debug logs by logging only non-sensitive metadata such as labels, regions, and resource IDs while redacting credentials, tokens, keys, scripts, and other sensitive content. Some other mitigations and workarounds are available. Disable Terraform/provider debug logging or set it to `WARN` level or above, restrict access to existing and historical logs, purge/retention-trim logs that may contain sensitive values, and/or rotate potentially exposed secrets/credentials.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-27900 since 02/24/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 3.9.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 43a925d826b999f0355de3dc7330c55f496824c0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• linode

Name

• terraform-provider-linode

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8

License

• open-source

Website

• Product: https://github.com/linode/terraform-provider-linode/

CPE 2.3info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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