CVE-2026-86504

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-07. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust confirmation before building a Dev Container allowed host-level code execution

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Sep 7, 2026
No patch confirmed yet.
generic

Fixed security issues

https://www.jetbrains.com/privacy-security/issues-fixed/

Vendor Advisories for CVE-2026-86504(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 23× in last 7d / 52× 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. 2026-09-19 06:22 UTCEG score recompute
  2. 2026-09-19 06:22 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 19:02 UTCGHSA enrichment
  5. 2026-09-18 07:41 UTCGHSA enrichment
  6. 2026-09-17 20:20 UTCGHSA enrichment
  7. 2026-09-17 07:49 UTCGHSA enrichment
  8. 2026-09-16 20:28 UTCEG score recompute
  9. 2026-09-16 20:27 UTCGHSA enrichment
  10. 2026-09-16 14:09 UTCEPSS rescore
  11. 2026-09-16 08:59 UTCGHSA enrichment
  12. 2026-09-15 20:51 UTCGHSA enrichment
  13. 2026-09-15 09:04 UTCEG score recompute
  14. 2026-09-15 09:04 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 21:43 UTCGHSA enrichment
  18. 2026-09-14 10:22 UTCGHSA enrichment
  19. 2026-09-13 23:02 UTCEG score recompute
  20. 2026-09-13 23:02 UTCGHSA enrichment
  21. 2026-09-13 11:41 UTCGHSA enrichment
  22. 2026-09-13 00:21 UTCEG score recompute
  23. 2026-09-13 00:21 UTCGHSA enrichment
  24. 2026-09-12 13:01 UTCGHSA enrichment
  25. 2026-09-12 01:40 UTCEG score recompute
Show 27 more
  1. 2026-09-12 01:40 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 14:19 UTCEG score recompute
  5. 2026-09-11 14:19 UTCGHSA enrichment
  6. 2026-09-11 02:58 UTCGHSA enrichment
  7. 2026-09-10 15:37 UTCEG score recompute
  8. 2026-09-10 15:37 UTCGHSA enrichment
  9. 2026-09-10 04:16 UTCGHSA enrichment
  10. 2026-09-09 16:55 UTCGHSA enrichment
  11. 2026-09-09 05:32 UTCEG score recompute
  12. 2026-09-09 05:32 UTCGHSA enrichment
  13. 2026-09-09 04:41 UTCEG score recompute
  14. 2026-09-09 04:41 UTCGHSA enrichment
  15. 2026-09-09 03:13 UTCEG score recompute
  16. 2026-09-09 03:13 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-08 15:52 UTCGHSA enrichment
  19. 2026-09-08 11:36 UTCEG score recompute
  20. 2026-09-08 11:36 UTCGHSA enrichment
  21. 2026-09-08 10:57 UTCEG score recompute
  22. 2026-09-08 10:57 UTCGHSA enrichment
  23. 2026-09-08 04:44 UTCEG score recompute
  24. 2026-09-08 04:44 UTCGHSA enrichment
  25. 2026-09-07 17:23 UTCEG score recompute
  26. 2026-09-07 16:35 UTCEG score recompute
  27. 2026-09-07 16:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86504?
CVE-2026-86504 is a high vulnerability published on September 7, 2026. In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust confirmation before building a Dev Container allowed host-level code execution
When was CVE-2026-86504 disclosed?
CVE-2026-86504 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86504 actively exploited?
CVE-2026-86504 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 97.1% of all scored CVEs.
What is the CVSS score of CVE-2026-86504?
CVE-2026-86504 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-86504?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86504, 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

Explore the affected products and dependency analysis for CVE-2026-86504

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