{"schema_version":"1.7.3","id":"GHSA-5rc7-2jj6-mp64","published":"2026-02-26T20:00:12Z","modified":"2026-03-09T02:03:37.334500012Z","aliases":["CVE-2026-27900","GO-2026-4562"],"summary":"Terraform Provider  for Linode Debug Logs Vulnerable to Sensitive Information Exposure","details":"### Impact\nThe 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.\n\n**Important:** Provider debug logging is **not enabled by default**.  \nThis 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.\n\nSpecifically:\n- Instance creation operations logged the full InstanceCreateOptions struct containing RootPass and StackScriptData\n- Instance disk creation logged InstanceDiskCreateOptions containing RootPass and StackscriptData\n- StackScript update operations logged the complete script content via StackscriptUpdateOptions.Script\n- Image share group member creation logged tokens in ImageShareGroupAddMemberOptions.Token\n- Object storage operations logged full PutObjectInput structures containing user data\n- NodeBalancer config create and update operations logged NodeBalancerConfigCreateOptions and NodeBalancerConfigUpdateOptions containing the SSLKey (TLS private key)\n\nAn 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.\n\n### Patches\nUpdate to version v3.9.0 or later, which sanitizes 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.\n\n### Workarounds and Mitigations\n- Disable Terraform/provider debug logging or set it to `WARN` level or above\n  - To disable the logging, you can unset `TF_LOG_PROVIDER` and `TF_LOG` environment variables\n  - Or you can set them to `WARN` or `ERROR` levels to avoid sensitive information logged in `INFO` and `DEBUG` levels.\n  - See Terraform docs for details: https://developer.hashicorp.com/terraform/internals/debugging\n- Restrict access to existing and historical logs\n- Purge/retention-trim logs that may contain sensitive values\n- Rotate potentially exposed secrets/credentials, including:\n  - Root passwords\n  - Image share group tokens\n  - TLS private keys/certificates used in NodeBalancer configs\n  - StackScript content/secrets if embedded\n\n### Credits\nThis issue was reported to Terraform by Hasan Sheet via [Akamai's HackerOne Bug Bounty program](https://hackerone.com/akamai).\n\n### Resources\nhttps://github.com/linode/terraform-provider-linode/releases/tag/v3.9.0\nhttps://github.com/linode/terraform-provider-linode/pull/2269\nhttps://github.com/linode/terraform-provider-linode/commit/43a925d826b999f0355de3dc7330c55f496824c0","affected":[{"package":{"name":"github.com/linode/terraform-provider-linode/v3","ecosystem":"Go","purl":"pkg:golang/github.com/linode/terraform-provider-linode/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.9.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-5rc7-2jj6-mp64/GHSA-5rc7-2jj6-mp64.json"}},{"package":{"name":"github.com/linode/terraform-provider-linode/v2","ecosystem":"Go","purl":"pkg:golang/github.com/linode/terraform-provider-linode/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.41.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-5rc7-2jj6-mp64/GHSA-5rc7-2jj6-mp64.json"}},{"package":{"name":"github.com/linode/terraform-provider-linode","ecosystem":"Go","purl":"pkg:golang/github.com/linode/terraform-provider-linode"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.30.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-5rc7-2jj6-mp64/GHSA-5rc7-2jj6-mp64.json"}}],"references":[{"type":"WEB","url":"https://github.com/linode/terraform-provider-linode/security/advisories/GHSA-5rc7-2jj6-mp64"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27900"},{"type":"WEB","url":"https://github.com/linode/terraform-provider-linode/pull/2269"},{"type":"WEB","url":"https://github.com/linode/terraform-provider-linode/commit/43a925d826b999f0355de3dc7330c55f496824c0"},{"type":"PACKAGE","url":"https://github.com/linode/terraform-provider-linode"},{"type":"WEB","url":"https://github.com/linode/terraform-provider-linode/releases/tag/v3.9.0"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/02/26/2"}],"database_specific":{"cwe_ids":["CWE-532"],"github_reviewed":true,"github_reviewed_at":"2026-02-26T20:00:12Z","nvd_published_at":"2026-02-26T02:16:20Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"}]}