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Medium 6.5Published Sep 5, 2026

CVE-2026-86114Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints

Updated under an hour ago ()

Does this affect you?

It affects getarcaneapp arcane. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-862
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Sep 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
getarcaneapp arcane
getarcaneapp:arcane (from the name)
from 1.19.1 before 2.0.0
CNA record

References

  • technical-description
  • technical-description
  • patch
  • release-notes
  • product
  • third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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