Terraform Provider for Linode Debug Logs Vulnerable to Sensitive Information Exposure

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.0 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

EPSS

• CVE-2026-27900: 0.52% estimated exploitation activity in the next 30 days; percentile 44.38 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact The Terraform Provider for Linode versions prior to v3.9.0 logged sensitive information including some passwords, StackScript content, object storage data, and NodeBalancer TLS keys in debug logs without redaction. Important: 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. Specifically: - Instance creation operations logged the full InstanceCreateOptions struct containing RootPass and StackScriptData - Instance disk creation logged InstanceDiskCreateOptions containing RootPass and StackscriptData - StackScript update operations logged the complete script content via StackscriptUpdateOptions.Script - Image share group member creation logged tokens in ImageShareGroupAddMemberOptions.Token -…

Published by the source

26 Feb 2026, 20:00 UTC

Last modified by the source

26 Feb 2026, 20:00 UTC

Source last checked

26 Oct 2026, 15:14 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-5rc7-2jj6-mp64

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# Patch Next advisory brief: CVE-2026-27900

Advisory: Terraform Provider for Linode Debug Logs Vulnerable to Sensitive Information Exposure
IDs: CVE-2026-27900, GHSA-5rc7-2jj6-mp64
Record: https://patchnext.com/advisories/cve-2026-27900 (revision 1, source checked 26 Oct 2026, 15:14 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: github.com/linode/terraform-provider-linode/v3 3.9.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/linode/terraform-provider-linode/v2: affected <= 2.41.2
- Go github.com/linode/terraform-provider-linode/v3: affected < 3.9.0; fixed in 3.9.0
- Go github.com/linode/terraform-provider-linode: affected <= 1.30.0

## Suggested inspection (read-only)
- Go github.com/linode/terraform-provider-linode/v2: check the installed version with your package manager.
- Go github.com/linode/terraform-provider-linode/v3: check the installed version with your package manager.
- Go github.com/linode/terraform-provider-linode: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/linode/terraform-provider-linode/v2, github.com/linode/terraform-provider-linode/v3, github.com/linode/terraform-provider-linode.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-5rc7-2jj6-mp64 (GitHub-reviewed advisory GHSA-5rc7-2jj6-mp64 lists affected ranges: Go github.com/linode/terraform-provider-linode/v3 >=0 =0 =0 <=1.30.0)

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