How severe is CVE-2026-6959?

CVE-2026-6959 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-6959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6959?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-6959 have an EU (EUVD) identifier?

Yes. CVE-2026-6959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29825.

When was CVE-2026-6959 published?

CVE-2026-6959 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-6959

CVE-2026-6959 is a medium-severity vulnerability with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29825
Weakness: CWE-59
Published: 2026-05-12
Last modified: 2026-06-17

Description

HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11.

Frequently asked questions

What is CVE-2026-6959?: HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11.
How severe is CVE-2026-6959?: CVE-2026-6959 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-6959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-6959?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-6959 have an EU (EUVD) identifier?: Yes. CVE-2026-6959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29825.
When was CVE-2026-6959 published?: CVE-2026-6959 was published on 2026-05-12 and last updated on 2026-06-17.

References

https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416

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