GHSA-28r2-q6m8-9hpx is a high-severity (CVSS 8.6) vulnerability in github.com/hashicorp/go-getter. O3 Security confirms whether GHSA-28r2-q6m8-9hpx is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
HashiCorp go-getter unsafe downloads could lead to asymmetric resource exhaustion
Real-World Exposure
github.com/hashicorp/go-getter🐹github.com/hashicorp/go-getter🐹github.com/hashicorp/go-getter/v2🐹github.com/hashicorp/go-getter/s3/v2🐹github.com/hashicorp/go-getter/gcs/v2Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
HashiCorp go-getter through 2.0.2 does not safely perform downloads. Asymmetric resource exhaustion could occur when go-getter processed malicious HTTP responses.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/hashicorp/go-getter | all versions | 1.6.1 |
| 🐹Go | github.com/hashicorp/go-getter | ≥ 2.0.0&&< 2.1.0 | 2.1.0 |
| 🐹Go | github.com/hashicorp/go-getter/v2 | all versions | 2.1.0 |
| 🐹Go | github.com/hashicorp/go-getter/s3/v2 | all versions | 2.1.0 |
| 🐹Go | github.com/hashicorp/go-getter/gcs/v2 | all versions | 2.1.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/hashicorp/go-getter. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/hashicorp/go-getter to 1.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-28r2-q6m8-9hpx is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-28r2-q6m8-9hpx is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-28r2-q6m8-9hpx. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-28r2-q6m8-9hpx in your dependencies?
O3 detects GHSA-28r2-q6m8-9hpx across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.