HashiCorp go-getter Updates Block S3 and GCS Path Traversal
Tech GuruQuick Answer
HashiCorp published HCSEC-2026-44 for HashiCorp go-getter 1.x and go-getter/v2 directory downloads from Amazon S3 or Google Cloud Storage. Inventory the exact affected scope, apply go-getter 1.8.10 or go-getter/v2 2.2.5, validate dependent operations, and preserve change evidence.
Validate go-getter Scope And Apply The Supported Fix
What to do now: Inventory HashiCorp go-getter 1.x and go-getter/v2 directory downloads from Amazon S3 or Google Cloud Storage, match versions and enabled features to the authority's scope, apply supported remediation, validate representative operations, and document exceptions.
Last verified: 2026-10-08 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | HashiCorp go-getter 1.x and go-getter/v2 directory downloads from Amazon S3 or Google Cloud Storage |
|---|---|
| Advisory | HCSEC-2026-44 |
| CVE | CVE-2026-19585 |
| Authoritative release date | 2026-10-08 15:16:21.404 UTC |
| Authority revision date | 2026-10-08 15:16:21.509 UTC |
| Affected versions | go-getter through 1.8.9 and go-getter/v2 through 2.2.4 when applications download S3 or GCS directories; single-object downloads are not affected. |
| Fixed version | go-getter 1.8.10 or go-getter/v2 2.2.5 |
| CVSS base score | Not provided by the authority |
| CVSS severity | Not provided by the authority |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
Object names returned during S3 or GCS directory downloads were not constrained to the requested destination, allowing a bucket-content attacker to write outside that directory subject to the downloader process permissions.
What To Validate Now
- Inventory. Locate HashiCorp go-getter 1.x and go-getter/v2 directory downloads from Amazon S3 or Google Cloud Storage; record versions, enabled features, exposure paths, owners, dependencies, support channels, and maintenance groups.
- Establish applicability. Compare every deployment with the authority's affected statement: go-getter through 1.8.9 and go-getter/v2 through 2.2.4 when applications download S3 or GCS directories; single-object downloads are not affected. Do not infer applicability from product family, CVSS, or Internet reachability alone.
- Remediate. Apply go-getter 1.8.10 or go-getter/v2 2.2.5 through the authority-supported channel and follow the current advisory.
- Validate. Confirm the resulting go-getter build or managed state, exercise representative services and recovery paths, monitor for regressions, and retain the result.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Trace direct and transitive library use, confirm whether untrusted bucket object names can reach directory-mode downloads, rebuild dependent binaries with the fixed module, and validate destination containment. Preserve pre-change state, installation output, logs, validation evidence, and rollback decisions.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
