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HIGH severity

CVE-2021-43415 — nomad

HIGH

CVE-2021-43415 is a high-severity (CVSS 8.8) vulnerability in github.com/hashicorp/nomad. A fix is available for github.com/hashicorp/nomad — see the affected versions and patch details below.

Improper Authentication in HashiCorp Nomad

Also known asGHSA-2jhh-5xm2-j4gfGO-2022-0573
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Oct 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs68th percentile — riskier than 68% of all scored CVEsHighest risk
0.00%0.57%1.15%1.72%0.3%1.2%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2021-43415 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

3 pkgs affected
🐹github.com/hashicorp/nomad🐹github.com/hashicorp/nomad🐹github.com/hashicorp/nomad

Real-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 up to 1.0.13, 1.1.7, and 1.2.0, with the QEMU task driver enabled, allowed authenticated users with job submission capabilities to bypass the configured allowed image paths. Fixed in 1.0.14, 1.1.8, and 1.2.1.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/hashicorp/nomadall versions1.0.14go get github.com/hashicorp/nomad@v1.0.14
🐹Gogithub.com/hashicorp/nomad≥ 1.1.0&&< 1.1.81.1.8go get github.com/hashicorp/nomad@v1.1.8
🐹Gogithub.com/hashicorp/nomad≥ 1.2.0&&< 1.2.11.2.1go get github.com/hashicorp/nomad@v1.2.1

Affected Products

1 product · 6 configurations
Application
nomadhashicorp
≥ 1.1.0 && < 1.1.8
1 version
1.2.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    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.

  2. Fix

    Update github.com/hashicorp/nomad to 1.0.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-43415 is resolved across your whole dependency graph.

  3. 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.

Frequently Asked Questions

HashiCorp Nomad and Nomad Enterprise up to 1.0.13, 1.1.7, and 1.2.0, with the QEMU task driver enabled, allowed authenticated users with job submission capabilities to bypass the configured allowed image paths. Fixed in 1.0.14, 1.1.8, and 1.2.1.
O3 Security · Impact-Aware SCA

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CVE-2021-43415: nomad — Fixed in 1.0.14