CVE-2026-86114 json
Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints
published 2026-09-05 2 mo ago modified 2026-09-24 46 d ago also EUVD-2026-71946
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
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.
Patch / fix
- getarcaneapp arcane 2.0.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 55 d ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- getarcaneapp arcane
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/getarcaneapp/arcane/commit/1500646aa91f
patch
-
github.com
/geo-chen/oss/blob/main/arcane.md
technical-description
-
github.com
/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go
technical-description
-
github.com
/getarcaneapp/arcane/releases/tag/v2.0.0
release-notes
-
github.com
/getarcaneapp/arcane
product
-
vulncheck.com
/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints
third-party-advisory
Sources
- CVE List CVE-2026-86114
- NVD CVE-2026-86114
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