Vulnerability-Lookup

GHSA-WQWC-X3RC-2XW6

Vulnerability from github – Published: 2026-05-12 21:31 – Updated: 2026-05-19 15:39

Summary

HashiCorp Nomad’s exec2 task driver vulnerable to a symlink attack

Details

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.

Severity

6.0 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/hashicorp/nomad-driver-exec2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-8052"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T15:39:35Z",
    "nvd_published_at": "2026-05-12T20:16:46Z",
    "severity": "MODERATE"
  },
  "details": "HashiCorp Nomad\u2019s 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.",
  "id": "GHSA-wqwc-x3rc-2xw6",
  "modified": "2026-05-19T15:39:35Z",
  "published": "2026-05-12T21:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8052"
    },
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-13-nomads-exec2-task-driver-vulnerable-to-arbitrary-file-read-write-on-client-host-through-symlink-attack/77415"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hashicorp/nomad-driver-exec2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hashicorp/nomad-driver-exec2/releases/tag/v0.1.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "HashiCorp Nomad\u2019s exec2 task driver vulnerable to a symlink attack"
}

CVE-2026-8052 (GCVE-0-2026-8052)

Vulnerability from cvelistv5 – Published: 2026-05-12 19:09 – Updated: 2026-05-12 20:22

Title

Nomad's exec2 task driver vulnerable to arbitrary file read/write on client host through symlink attack

Summary

Severity

6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

CWE

CWE-59 - Improper Link Resolution Before File Access (Link Following)

Assigner

HashiCorp

References

1 reference

URL	Tags
https://discuss.hashicorp.com/t/hcsec-2026-13-nom…

Impacted products

1 product

Vendor	Product	Version
HashiCorp	Shared library	Affected: 0.1.0 , < 0.1.2 (semver)

Credits

This issue was identified by the Nomad engineering team in conjunction with Alex Manson (Aiven / NeuroWinter).

Show details on NVD website

JSON

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        "metrics": [
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                "id": "CVE-2026-8052",
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                  },
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                    "Automatable": "no"
                  },
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-12T20:22:26.659986Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-WQWC-X3RC-2XW6

CVE-2026-8052 (GCVE-0-2026-8052)

Tags

Sightings

Nomenclature