Consul-template vulnerable to an information disclosure issue in error handling (CVE-2026-87993) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-87993

Consul-template vulnerable to an information disclosure issue in error handling

Answer in brief

CVE-2026-87993 records a Unknown severity vulnerability in Consul-template vulnerable to an information disclosure issue in error handling. The current sources do not mark it as known exploited. The current feed maps HashiCorp/Tooling (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 Sep 10, 2026Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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/Tooling (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
HashiCorp/Toolinggeneric	>=0.27.2 <0.43.0	0.43.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for HashiCorp/Tooling.
Review the reported fix. Update HashiCorp/Tooling to 0.43.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Source referencediscuss.hashicorp.com

Upstream source description

The consul-template library is vulnerable to an information disclosure issue in its error handling path that may allow Vault secret values to appear in template error messages, log output, and downstream surfaces such as Nomad task events. This vulnerability (CVE-2026-87993) is fixed in consul-template 0.43.0.

Quoted source text, attributed separately from HOL analysis.