Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints
Priority LOW 32CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0043 37th percentileScored 2026-11-07
Fix Fixed arcane (getarcaneapp): 2.0.0
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 |
|---|---|---|---|---|---|
| getarcaneapp | arcane | 1.19.1 to before 2.0.0 | 2.0.0 | Patch available | CNA |
- arcane Vendorgetarcaneapp Affected 1.19.1 to before 2.0.0 Fixed in 2.0.0 Patch available CNA
Remediation
- Fix · CNA arcane (getarcaneapp) Fixed in 2.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-86114
- 2026-10-03 Alias added: GHSA-pj2x-fr4j-wrxq
References
More getarcaneapp vulnerabilities
- TI-2026-33369 Missing authorization in getarcaneapp arcane CVSS 3.1CRITICAL 9.9
- TI-2026-75557 Arcane users with delegated permission can take over admin accounts CVSS 3.1HIGH 8.8
- TI-2026-34717 Arcane: Missing admin authorization on global variables endpoint CVSS 3.1HIGH 8.8
- TI-2026-75556 Credential exfiltration in Arcane via registry URL repointing CVSS 3.1HIGH 8.5
- TI-2026-33371 Arcane: Unauthenticated reflected XSS via SVG color parameter in /api/app-images/logo enables admin account takeover CVSS 3.1HIGH 8.2
- TI-2026-34768 Arcane: Authenticated Arbitrary Host File Read via Docker Compose Include Directives in Arcane CVSS 3.1HIGH 7.7
Sources
- CVE-2026-86114 · CVE Program
- CVE-2026-86114 · NVD
- FIRST EPSS
- GHSA-pj2x-fr4j-wrxq · GitHub Advisory Database · CC BY 4.0
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