CVE-2026-14891
Docker driver sandbox escape in Nomad allows host path bind-mounts.
Is CVE-2026-14891 being exploited?
Not confirmed. CVE-2026-14891 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-14891?
CVE-2026-14891 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-14891?
Yes. A fix has been recorded for CVE-2026-14891. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-14891 affect?
CVE-2026-14891 affects Nomad Community Edition < 2.0.4, Nomad Enterprise < 2.0.4, Nomad Enterprise 1.11.x < 1.11.8, Nomad Enterprise 1.10.x < 1.10.14. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-14891?
Upgrade to CE 2.0.4 or EE 2.0.4/1.11.8/1.10.14; restrict job submitters or disable Docker driver until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A job submitter can bind-mount host paths into containers despite disabled mounts, enabling read/write of host files and potential host compromise.
Immediate action required
- affected>= 0.4.1 and < 2.0.4
- affected>= 0.4.1 and < 2.0.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.