CVE-2025-4922: Nomad Community and Nomad Enterprise (“Nomad”) prefix-based ACL policy lookup can lead to incorrect rule appli

Routine

HIGH 8.1UPGRADE

CVE-2025-4922 is a high-severity flaw (CVSS 8.1) affecting nomad. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nomad Community and Nomad Enterprise (“Nomad”) prefix-based ACL policy lookup can lead to incorrect rule application and shadowing. This vulnerability, identified as CVE-2025-4922, is fixed in Nomad Community Edition 1.10.2 and Nomad Enterprise 1.10.2, 1.9.10, and 1.8.14.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-266
Published	2025-06-11
Last modified	2026-06-17

Publisher (CNA): HashiCorp Inc. · Vendor: hashicorp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-11 14:15 UTCPublished CVE record published
2026-06-17 09:34 UTCUpdated Record last modified

hashicorp nomad UPGRADE

Affected: >= 1.4.0 and < 1.8.14 · >= 1.4.0 and < 1.10.2 · >= 1.9.0 and < 1.9.10 · >= 1.10.0 and < 1.10.2

Fixed in: 1.8.14, 1.9.10, 1.10.2

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy nomad || rpm -q nomad || nomad --version

2. UPGRADE to 1.8.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nomad

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nomad

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison nomad sudo apt install nomad=<VERSION_BEFORE_1.4.0> sudo apt-mark hold nomad

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nomad sudo dnf downgrade nomad-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add nomad

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-4922?

nomad: upgrade to 1.8.14, 1.9.10, 1.10.2. Exact commands for each OS are on this page.

Is CVE-2025-4922 being exploited?

CVE-2025-4922 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-4922 affect?

CVE-2025-4922 affects nomad. Severity is high (CVSS 8.1). Nomad Community and Nomad Enterprise (“Nomad”) prefix-based ACL policy lookup can lead to incorrect rule application and shadowing. This vulnerability, identified as CVE-2025-4922, is fixed in Nomad Community Edition 1.10.2 and Nomad Enterp

How urgent is CVE-2025-4922?

Priority 39/100. High severity

Related CVEs

CVE-2025-3744 HIGH 7.6 UPGRADE Nomad Enterprise (“Nomad”) jobs using the policy override option are bypassing the mandatory sentinel policies
CVE-2025-1296 MEDIUM 6.5 UPGRADE Nomad Community and Nomad Enterprise (“Nomad”) are vulnerable to unintentional exposure of the workload identi
CVE-2025-0937 HIGH 7.1 UPGRADE Nomad Community and Nomad Enterprise ("Nomad") event stream configured with a wildcard namespace can bypass th
CVE-2024-7625 MEDIUM 5.8 UPGRADE In HashiCorp Nomad and Nomad Enterprise from 0.6.1 up to 1.6.13, 1.7.10, and 1.8.2, the archive unpacking proc
CVE-2024-6717 HIGH 7.7 UPGRADE HashiCorp Nomad and Nomad Enterprise 1.6.12 up to 1.7.9, and 1.8.1 archive unpacking during migration is vulne

References

← Back to latest CVEs