Nomad's exec2 task driver vulnerable to arbitrary file read/write on client host through symlink attack
Priority LOW 26CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
HashiCorp Nomad’s exec2 task driver prior to 0.1.2 is vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-8052) is fixed in version 0.1.2 of the exec2 task driver.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00129 2nd percentileScored 2026-11-07
Fix Fixed Shared library (HashiCorp): 0.1.2github.com/hashicorp/nomad-driver-exec2 (Go): 0.1.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Shared library | 0.1.0 to before 0.1.2 | 0.1.2 | Patch available | CNA |
| — | github.com/hashicorp/nomad-driver-exec2 (Go) | before 0.1.2 | 0.1.2 | Patch available | GHSA-wqwc-x3rc-2xw6 |
- Shared library VendorHashiCorp Affected 0.1.0 to before 0.1.2 Fixed in 0.1.2 Patch available CNA
- github.com/hashicorp/nomad-driver-exec2 (Go) Vendor— Affected before 0.1.2 Fixed in 0.1.2 Patch available GHSA-wqwc-x3rc-2xw6
Remediation
- Fix · CNA Shared library (HashiCorp) Fixed in 0.1.2
- Fix · GHSA-wqwc-x3rc-2xw6 github.com/hashicorp/nomad-driver-exec2 (Go) Fixed in 0.1.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8052
- 2026-10-03 Alias added: GHSA-wqwc-x3rc-2xw6
References
More HashiCorp vulnerabilities
- TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
- TI-2021-18437 HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4… CVSS 3.1HIGH 8.8
- TI-2026-06570 Nomad vulnerable to path traversal in dynamic host volume which may lead to code execution CVSS 3.1HIGH 8.8
- TI-2020-17753 The official Consul Docker images 0.7.1 through 1.4.2 contain a blank password for a root… CVSS 3.1CRITICAL 9.8
- TI-2026-13641 consul-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0
- TI-2026-13778 terraform-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-8052 · CVE Program
- CVE-2026-8052 · NVD
- FIRST EPSS
- GHSA-wqwc-x3rc-2xw6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences