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Back to active CVEs
High · CVSS 8.4CVE-2026-107347

Nomad dispatch payload writes can escape the allocation directory through symlinksCVE-2026-107347

Answer in brief

CVE-2026-107347 records a High severity (CVSS 8.4) vulnerability in Nomad dispatch payload writes can escape the allocation directory through symlinks. The current sources do not mark it as known exploited. The current feed maps HashiCorp/Nomad (generic), HashiCorp/Nomad Enterprise (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Oct 29, 2026Material review Oct 29, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.4
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps HashiCorp/Nomad (generic), HashiCorp/Nomad Enterprise (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
HashiCorp/Nomadgeneric>=0.3.0 <2.1.02.1.0
HashiCorp/Nomad Enterprisegeneric>=0.3.0 <2.1.02.1.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for HashiCorp/Nomad, HashiCorp/Nomad Enterprise.
  2. 2Review the reported fix. Update HashiCorp/Nomad to 2.1.0; HashiCorp/Nomad Enterprise to 2.1.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 29, 2026

Sources and claim methodology

  • Source referencediscuss.hashicorp.com
Upstream source description

HashiCorp Nomad and Nomad Enterprise are vulnerable to symlink following during dispatch payload and executor log writes that may allow a malicious workload to modify files outside its allocation directory. When the client agent runs as root, this could lead to code execution as root on the client host. This vulnerability (CVE-2026-107347) is fixed in Nomad 2.1.0 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Nomad vulnerable to cross-namespace information disclosure in multiple endpointsSame hashicorp/nomad package
  • Nomad allocation data migration may allow host directory permission modification via symlink followingSame hashicorp/nomad package

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-59
Source
CVE List V5
Source checked
Oct 29, 2026
References
1 linked source
Open source record