CVE-2020-28348 is a medium-severity (CVSS 6.5) Path Traversal vulnerability in github.com/hashicorp/nomad. A fix is available for github.com/hashicorp/nomad — see the affected versions and patch details below.
Path Traversal in HashiCorp Nomad
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2020-28348 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
github.com/hashicorp/nomad🐹github.com/hashicorp/nomad🐹github.com/hashicorp/nomadReal-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 Nomad and Nomad Enterprise 0.9.0 up to 0.12.7 client Docker file sandbox feature (github.com/hashicorp/nomad/drivers/docker) may be subverted when not explicitly disabled or when using a volume mount type. Fixed in 0.12.8, 0.11.7, and 0.10.8.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/hashicorp/nomad | ≥ 0.9.0&&< 0.10.8 | 0.10.8go get github.com/hashicorp/nomad@v0.10.8 |
| 🐹Go | github.com/hashicorp/nomad | ≥ 0.11.0-beta1&&< 0.11.7 | 0.11.7go get github.com/hashicorp/nomad@v0.11.7 |
| 🐹Go | github.com/hashicorp/nomad | ≥ 0.12.0-beta1&&< 0.12.8 | 0.12.8go get github.com/hashicorp/nomad@v0.12.8 |
Affected Products
nomadhashicorpDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/hashicorp/nomad, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/hashicorp/nomad to 0.10.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-28348 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2020-28348 in your dependencies?
Find it across Go, including transitive dependencies.