CVE-2023-1296 | Nomad ACLs Can Not Deny Access to Workload's Own Variables

HashiCorp Nomad and Nomad Enterprise 1.4.0 up to 1.5.0 did not correctly enforce deny policies applied to a workload’s variables. Fixed in 1.4.6 and 1.5.1.

Published: 2023-03-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-1296 is rated Low Risk (25.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.54%). 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-2023-1296

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 0.19% 0.54% +0.35%
2 2026-03-15 0.37% 0.19% -0.19%
3 2026-01-08 — 0.37% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-1296

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.7 3.1 LOW
CVSS:3.1/AV:N/AC:L/PR:H/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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.
 1.2 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 [email protected]

Weakness enumeration for CVE-2023-1296

GitHub Security Advisory for CVE-2023-1296

GHSA-hhvx-8755-4cvw · Severity: medium · Ecosystem: go — Hashicorp Nomad ACLs Cannot Deny Access to Workload’s Own Variables

OS Trackers for CVE-2023-1296

vendor priority summary link
alpine medium CVE-2023-1296: 1 source package rows (nomad); 3 state rows across 3 repos (3.17-community, 3.18-community, edge-community); fixed 3, open 0. https://security.alpinelinux.org/vuln/CVE-2023-1296
ubuntu medium CVE-2023-1296 medium priority: Ubuntu including 1 source packages (nomad), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): needs-triage 3, DNE 2, ignored 2. https://ubuntu.com/security/CVE-2023-1296

Affected software / configurations for CVE-2023-1296

Vendor Product Version Raw CPE
hashicorp nomad >= 1.4.0, < 1.4.6 cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:*
hashicorp nomad >= 1.4.0, < 1.4.6 cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:*
hashicorp nomad 1.5.0 cpe:2.3:a:hashicorp:nomad:1.5.0:*:*:*:-:*:*:*
hashicorp nomad 1.5.0 cpe:2.3:a:hashicorp:nomad:1.5.0:*:*:*:enterprise:*:*:*

References for CVE-2023-1296

cvelogic Threat Intelligence