Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints (CVE-2026-86114) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-86114

Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints

Answer in brief

CVE-2026-86114 records a Unknown severity vulnerability in Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints. The current sources do not mark it as known exploited. The current feed maps getarcaneapp/arcane (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 5, 2026Updated Sep 5, 2026Source checked Sep 6, 2026First seen by HOL Sep 5, 2026Material review Sep 5, 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 getarcaneapp/arcane (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
getarcaneapp/arcanegeneric	>=1.19.1 <2.0.0	2.0.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for getarcaneapp/arcane.
Review the reported fix. Update getarcaneapp/arcane to 2.0.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 5, 2026

Sources and claim methodology

Upstream source description

Arcane versions before 2.0.0 fail to properly restrict template operations, allowing default user role accounts to create, modify, and delete compose templates including instance-wide defaults. Attackers can inject malicious container configurations with privileged settings or host path mounts that execute with administrative privileges when deployed by administrators.

Quoted source text, attributed separately from HOL analysis.