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.

Published: 2022-12-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-14802 is rated Low Risk (36.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.59%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-14802

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.24% 0.59% +0.35%
2 2026-05-26 0.36% 0.24% -0.13%
3 2026-01-06 — 0.36% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-14802

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2019-14802

GitHub Security Advisory for CVE-2019-14802

GHSA-6hv3-7c34-4hx8 · Severity: medium · Ecosystem: go — Hashicorp Nomad Information Exposure Through Environmental Variables

OS Trackers for CVE-2019-14802

vendor priority summary link
alpine — CVE-2019-14802: 1 source package rows (nomad); 4 state rows across 3 repos (3.17-community, 3.18-community, edge-community); fixed 3, open 1. https://security.alpinelinux.org/vuln/CVE-2019-14802
redhat medium — https://access.redhat.com/security/cve/CVE-2019-14802
ubuntu medium CVE-2019-14802 medium priority: Ubuntu including 1 source packages (nomad), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): DNE 2, ignored 2, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2019-14802

Affected software / configurations for CVE-2019-14802

Vendor Product Version Raw CPE
hashicorp nomad >= 0.5.0, < 0.9.5 cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:*

References for CVE-2019-14802

cvelogic Threat Intelligence