CVE-2026-6959 json
Nomad vulnerable to arbitrary file read/write on client host through symlink attack
published 5mo ago modified 16d ago also EUVD-2026-29825 , GHSA-3934-423w-4jq3 , GO-2026-5076
- cvss
- 6.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 6%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/hashicorp/nomad 1.11.0-rc.1.0.20260512123500-2a09fd62c238
- HashiCorp Nomad 2.0.1
- HashiCorp Nomad Enterprise 1.10.11, 1.11.5, 2.0.1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |
| GitHub | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/hashicorp/nomad | <1.11.0-rc.1.0.20260512123500-2a09fd62c238 |
1.11.0-rc.1.0.20260512123500-2a09fd62c238 |
Affected products
- HashiCorp Nomad
- HashiCorp Nomad Enterprise
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
github.com
/hashicorp/nomad/commit/2a09fd62c23880ff306499ae03fe64628d82a23f
web, patch
-
discuss.hashicorp.com
/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-6959
advisory
-
github.com
/hashicorp/nomad
package
-
github.com
/hashicorp/nomad/releases/tag/v2.0.1
web
-
github.com
/advisories/GHSA-3934-423w-4jq3
advisory
Sources
- CVE List CVE-2026-6959
- GitHub Advisory GHSA-3934-423w-4jq3
- NVD CVE-2026-6959
- OSV GO-2026-5076
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.