CVE-2026-64804

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. a secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via project-local linter tooling

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 28, 2026

Advisory Details (1)

Auto-updated Jul 23, 2026
No patch confirmed yet.
generic

Fixed security issues

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

Vendor Advisories for CVE-2026-64804(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 16× in last 7d / 82× 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.

Showing the most recent 100 of 175 total refreshes for this CVE.

  1. 2026-09-14 06:57 UTCGHSA enrichment
  2. 2026-09-13 18:37 UTCEG score recompute
  3. 2026-09-13 18:37 UTCGHSA enrichment
  4. 2026-09-13 06:15 UTCGHSA enrichment
  5. 2026-09-12 17:45 UTCEG score recompute
  6. 2026-09-12 17:45 UTCGHSA enrichment
  7. 2026-09-12 05:12 UTCGHSA enrichment
  8. 2026-09-11 16:47 UTCEG score recompute
  9. 2026-09-11 16:47 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 09:37 UTCEPSS rescore
  12. 2026-09-11 03:33 UTCGHSA enrichment
  13. 2026-09-10 15:13 UTCEG score recompute
  14. 2026-09-10 15:13 UTCGHSA enrichment
  15. 2026-09-09 08:58 UTCEG score recompute
  16. 2026-09-09 08:58 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 21:32 UTCEG score recompute
  19. 2026-09-07 21:32 UTCGHSA enrichment
  20. 2026-09-07 16:01 UTCEPSS rescore
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-06 08:31 UTCGHSA enrichment
  23. 2026-09-05 19:28 UTCEG score recompute
  24. 2026-09-05 19:28 UTCGHSA enrichment
  25. 2026-09-05 15:31 UTCEPSS rescore
Show 75 more
  1. 2026-09-05 07:00 UTCEG score recompute
  2. 2026-09-05 07:00 UTCGHSA enrichment
  3. 2026-09-04 13:16 UTCEG score recompute
  4. 2026-09-04 13:16 UTCGHSA enrichment
  5. 2026-09-04 05:07 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 23:23 UTCEG score recompute
  8. 2026-09-01 23:23 UTCGHSA enrichment
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-31 01:16 UTCEG score recompute
  12. 2026-08-31 01:16 UTCGHSA enrichment
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 12:56 UTCEG score recompute
  15. 2026-08-30 12:56 UTCGHSA enrichment
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-30 00:36 UTCEG score recompute
  18. 2026-08-30 00:36 UTCGHSA enrichment
  19. 2026-08-28 21:42 UTCEPSS rescore
  20. 2026-08-27 22:31 UTCEG score recompute
  21. 2026-08-27 22:31 UTCGHSA enrichment
  22. 2026-08-27 10:12 UTCGHSA enrichment
  23. 2026-08-26 19:55 UTCEG score recompute
  24. 2026-08-26 19:55 UTCGHSA enrichment
  25. 2026-08-26 14:47 UTCEPSS rescore
  26. 2026-08-26 06:53 UTCGHSA enrichment
  27. 2026-08-25 17:45 UTCGHSA enrichment
  28. 2026-08-25 04:08 UTCGHSA enrichment
  29. 2026-08-24 15:49 UTCEG score recompute
  30. 2026-08-24 15:49 UTCGHSA enrichment
  31. 2026-08-24 03:28 UTCGHSA enrichment
  32. 2026-08-23 14:23 UTCGHSA enrichment
  33. 2026-08-23 02:03 UTCEG score recompute
  34. 2026-08-23 02:03 UTCGHSA enrichment
  35. 2026-08-23 00:19 UTCEPSS rescore
  36. 2026-08-22 13:44 UTCEG score recompute
  37. 2026-08-22 13:44 UTCGHSA enrichment
  38. 2026-08-22 01:24 UTCEG score recompute
  39. 2026-08-22 01:24 UTCGHSA enrichment
  40. 2026-08-21 23:49 UTCEPSS rescore
  41. 2026-08-21 13:04 UTCGHSA enrichment
  42. 2026-08-21 00:43 UTCEG score recompute
  43. 2026-08-21 00:43 UTCGHSA enrichment
  44. 2026-08-20 22:55 UTCEPSS rescore
  45. 2026-08-20 12:23 UTCGHSA enrichment
  46. 2026-08-20 00:04 UTCEG score recompute
  47. 2026-08-20 00:04 UTCGHSA enrichment
  48. 2026-08-19 17:04 UTCEPSS rescore
  49. 2026-08-19 11:43 UTCGHSA enrichment
  50. 2026-08-18 23:19 UTCEG score recompute
  51. 2026-08-18 23:19 UTCGHSA enrichment
  52. 2026-08-18 13:48 UTCEPSS rescore
  53. 2026-08-18 10:59 UTCGHSA enrichment
  54. 2026-08-17 22:38 UTCEG score recompute
  55. 2026-08-17 22:38 UTCGHSA enrichment
  56. 2026-08-17 13:47 UTCEPSS rescore
  57. 2026-08-17 10:18 UTCGHSA enrichment
  58. 2026-08-16 21:59 UTCEG score recompute
  59. 2026-08-16 21:59 UTCGHSA enrichment
  60. 2026-08-16 14:56 UTCEPSS rescore
  61. 2026-08-16 09:39 UTCEG score recompute
  62. 2026-08-16 09:39 UTCGHSA enrichment
  63. 2026-08-15 21:20 UTCGHSA enrichment
  64. 2026-08-15 09:00 UTCEG score recompute
  65. 2026-08-15 09:00 UTCGHSA enrichment
  66. 2026-08-15 01:30 UTCEPSS rescore
  67. 2026-08-14 20:40 UTCGHSA enrichment
  68. 2026-08-14 08:21 UTCEG score recompute
  69. 2026-08-14 08:21 UTCGHSA enrichment
  70. 2026-08-13 22:00 UTCEPSS rescore
  71. 2026-08-13 20:01 UTCGHSA enrichment
  72. 2026-08-13 07:42 UTCGHSA enrichment
  73. 2026-08-12 19:22 UTCEG score recompute
  74. 2026-08-12 19:22 UTCGHSA enrichment
  75. 2026-08-12 13:51 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-64804?
CVE-2026-64804 is a high vulnerability published on July 23, 2026. In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via project-local linter tooling
When was CVE-2026-64804 disclosed?
CVE-2026-64804 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64804 actively exploited?
CVE-2026-64804 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 91.0% of all scored CVEs.
What is the CVSS score of CVE-2026-64804?
CVE-2026-64804 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-64804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64804, 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.

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