CVE-2026-86114

7.1 highEPSS 0.4%

High (7.1). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

7.1 high

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

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2026-09-05
Modified: 2026-09-23
Record from: the NVD, synced 2026-10-19

References

https://github.com/geo-chen/oss/blob/main/arcane.md
https://github.com/getarcaneapp/arcane
https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go
https://github.com/getarcaneapp/arcane/commit/1500646aa91f
https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0

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