CVE-2026-86114

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-05. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

September 5, 2026

Last Modified

September 24, 2026

Advisory Details (5)

Auto-updated Sep 5, 2026
Patch available. Sources: github_release.
generic

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

https://www.vulncheck.com/advisories/arcane-before-2.0.0-missing-administrator-authorization-on-the-compose-template-mutation-endpoints
github_release Patch Available

v2.0.0

Patch available: getarcaneapp/arcane v2.0.0

https://github.com/getarcaneapp/arcane/releases/tag/v2.0.0
generic

arcane/backend/api/handlers/templates.go at v1.19.5 · getarcaneapp/arcane · GitHub

https://github.com/getarcaneapp/arcane/blob/v1.19.5/backend/api/handlers/templates.go
generic

GitHub - getarcaneapp/arcane: Modern Docker Management, Designed for Everyone · GitHub

https://github.com/getarcaneapp/arcane
generic

oss/arcane.md at main · geo-chen/oss · GitHub

https://github.com/geo-chen/oss/blob/main/arcane.md

Vendor Advisories for CVE-2026-86114(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 57× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 14:55 UTCEG score recompute
  2. 2026-09-24 14:55 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:23 UTCGHSA enrichment
  6. 2026-09-22 17:56 UTCEG score recompute
  7. 2026-09-22 17:56 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-21 21:09 UTCEPSS rescore
  10. 2026-09-21 18:23 UTCEG score recompute
  11. 2026-09-21 18:23 UTCGHSA enrichment
  12. 2026-09-20 20:16 UTCEPSS rescore
  13. 2026-09-20 18:52 UTCGHSA enrichment
  14. 2026-09-19 19:22 UTCEG score recompute
  15. 2026-09-19 19:22 UTCGHSA enrichment
  16. 2026-09-18 19:52 UTCEG score recompute
  17. 2026-09-18 19:52 UTCGHSA enrichment
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-17 20:22 UTCEG score recompute
  20. 2026-09-17 20:22 UTCGHSA enrichment
  21. 2026-09-17 19:32 UTCEPSS rescore
  22. 2026-09-16 19:28 UTCEG score recompute
  23. 2026-09-16 19:28 UTCGHSA enrichment
  24. 2026-09-16 14:09 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 32 more
  1. 2026-09-15 19:57 UTCEG score recompute
  2. 2026-09-15 19:57 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 20:27 UTCEG score recompute
  6. 2026-09-14 20:27 UTCGHSA enrichment
  7. 2026-09-14 19:40 UTCEG score recompute
  8. 2026-09-14 19:40 UTCGHSA enrichment
  9. 2026-09-14 07:04 UTCEG score recompute
  10. 2026-09-14 07:04 UTCGHSA enrichment
  11. 2026-09-13 07:34 UTCEG score recompute
  12. 2026-09-13 07:34 UTCGHSA enrichment
  13. 2026-09-12 08:04 UTCEG score recompute
  14. 2026-09-12 08:04 UTCGHSA enrichment
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 14:53 UTCEPSS rescore
  17. 2026-09-11 08:33 UTCEG score recompute
  18. 2026-09-11 08:33 UTCGHSA enrichment
  19. 2026-09-10 09:02 UTCGHSA enrichment
  20. 2026-09-09 09:28 UTCEG score recompute
  21. 2026-09-09 09:28 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 09:58 UTCEG score recompute
  24. 2026-09-08 09:58 UTCGHSA enrichment
  25. 2026-09-07 09:27 UTCEG score recompute
  26. 2026-09-07 09:27 UTCGHSA enrichment
  27. 2026-09-06 13:48 UTCEPSS rescore
  28. 2026-09-06 09:52 UTCEG score recompute
  29. 2026-09-06 09:52 UTCGHSA enrichment
  30. 2026-09-05 10:22 UTCEG score recompute
  31. 2026-09-05 10:16 UTCEG score recompute
  32. 2026-09-05 10:13 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86114?
CVE-2026-86114 is a medium vulnerability published on September 5, 2026. 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…
When was CVE-2026-86114 disclosed?
CVE-2026-86114 was first published in the National Vulnerability Database on September 5, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86114 actively exploited?
CVE-2026-86114 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.5% of all scored CVEs.
What is the CVSS score of CVE-2026-86114?
CVE-2026-86114 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-86114?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86114, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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