CVE-2026-4764

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 89% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
9.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.4Exploit: None knownExposed services: Not assessed

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

A Missing Authorization vulnerability in the playbook import functionality in Dialogflow CX on Google Cloud Platform allows an authenticated user with specific roles to escalate privileges and potentially take over a GCP project using a maliciously crafted playbook import.

This vulnerability was patched on 15 March 2026, and no customer action is needed.

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
47
EG Risk 47/100

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
Severity94% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.4%
EPSS %ILE
26th
KEV
Not listed

Published

June 11, 2026

Last Modified

June 11, 2026

Advisory Details (1)

Auto-updated Oct 2, 2026
No patch confirmed yet.
generic

Dialogflow release notes  |  Google Cloud Documentation

https://docs.cloud.google.com/dialogflow/docs/release-notes#May_07_2026

Vendor Advisories for CVE-2026-4764(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 4× in last 7d / 22× 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 464 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-4764?
CVE-2026-4764 is a critical vulnerability published on June 11, 2026. A Missing Authorization vulnerability in the playbook import functionality in Dialogflow CX on Google Cloud Platform allows an authenticated user with specific roles to escalate privileges and potentially take over a GCP project using a maliciously crafted playbook import. This vulnerability was…
When was CVE-2026-4764 disclosed?
CVE-2026-4764 was first published on June 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4764 actively exploited?
CVE-2026-4764 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-4764?
CVE-2026-4764 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-4764?
No fix for CVE-2026-4764 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-4764 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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