CVE-2019-14802
Hashicorp Nomad Information Exposure Through Environmental Variables
CVE-2019-14802 is a medium vulnerability (CVSS 5.3) in Hashicorp Nomad, published February 15, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. Fixed in github.com/hashicorp/nomad 0.9.5.
- Severity
- 5.3 MediumCVSS 3.1, NVD
- Exploit chance
- 0.63%EPSS, 50th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.9.5github.com/hashicorp/nomad +8 more
Description
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/nomadGo | before 0.9.5 | 0.9.5 |
nomadAlpine:v3.13 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadAlpine:v3.14 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadAlpine:v3.15 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadAlpine:v3.16 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadAlpine:v3.17 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadAlpine:v3.18 | 0.5.0 up to 0.9.5-r0 | 0.9.5-r0 |
nomadUbuntu:18.04:LTS | All versions, plus listed versions 0.4.0+dfsg-1 | None known |
nomadUbuntu:20.04:LTS | All versions, plus listed versions 0.8.7+dfsg1-1ubuntu1 | None known |
What each source reports
NVD Score used
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
CVE-2019-14802- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
CVE-2019-14802- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2022-0861
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
EUVD-2022-0861- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6hv3-7c34-4hx8
Hashicorp Nomad Information Exposure Through Environmental Variables
In Nomad before version 0.9.5, when rendering a task template, all environment variables were available to the rendering task. As a fix, only task environment variables are used.
- Record
GHSA-6hv3-7c34-4hx8- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200, CWE-526
- Updated
- 2026-11-02
OSVALPINE-CVE-2019-14802
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
ALPINE-CVE-2019-14802- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
OSV
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
CVE-2019-14802- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-6hv3-7c34-4hx8
Hashicorp Nomad Information Exposure Through Environmental Variables
In Nomad before version 0.9.5, when rendering a task template, all environment variables were available to the rendering task. As a fix, only task environment variables are used.
- Record
GHSA-6hv3-7c34-4hx8- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200, CWE-526
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-14802
HashiCorp Nomad 0.5.0 through 0.9.4 (fixed in 0.9.5) reveals unintended environment variables to the rendering task during template rendering, aka GHSA-6hv3-7c34-4hx8. This applies to nomad/client/allocrunner/taskrunner/template.
- Record
UBUNTU-CVE-2019-14802- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGO-2022-0634No score
Hashicorp Nomad Information Exposure Through Environmental Variables in github.com/hashicorp/nomad
Hashicorp Nomad Information Exposure Through Environmental Variables in github.com/hashicorp/nomad
- Record
GO-2022-0634- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| affected, aliases, references | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
hashicorp.com/blog/category/nomad
advisories.gitlab.com/advisory/advgo_github_com_hashicorp_nomad_client_allocrunner_taskrunner_template_GMS_2022_818.html
github.com/hashicorp/nomad/pull/6055
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14802
nvd.nist.gov/vuln/detail/CVE-2019-14802