CVE-2026-7723

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory published 2026-05-04. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
34.1%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 4, 2026

Advisory Details (5)

Auto-updated May 4, 2026
No patch confirmed yet.
generic

Release 3.6.14 - A Prefect Server for Every ::1 · PrefectHQ/prefect · GitHub

https://github.com/PrefectHQ/prefect/releases/tag/3.6.14
generic

Add authentication to /api/events/in WebSocket endpoint by devin-ai-integration[bot] · Pull Request #20372 · PrefectHQ/prefect · GitHub

https://github.com/PrefectHQ/prefect/pull/20372
generic

Make /api/events/in backward compatible when auth is not configured · PrefectHQ/prefect@0d3ab3c · GitHub

https://github.com/PrefectHQ/prefect/commit/0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40
generic

GitHub - PrefectHQ/prefect: Prefect is a workflow orchestration framework for building resilient data pipelines in Python. · GitHub

https://github.com/PrefectHQ/prefect/
generic

REPORT.md · GitHub

https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f

Vendor Advisories for CVE-2026-7723(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
prefect0.10.0 ... 3.6.9 (695 versions)3.6.14—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 39× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-09 19:10 UTCEPSS rescore
  5. 2026-07-08 15:16 UTCEPSS rescore
  6. 2026-07-08 15:16 UTCEPSS rescore
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-07 13:46 UTCEPSS rescore
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-06 02:23 UTCEPSS rescore
  13. 2026-07-05 02:31 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-25 13:50 UTCEPSS rescore
  23. 2026-06-24 14:05 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
Show 59 more
  1. 2026-06-21 14:56 UTCEPSS rescore
  2. 2026-06-21 01:59 UTCEPSS rescore
  3. 2026-06-19 19:26 UTCEPSS rescore
  4. 2026-06-18 17:52 UTCEPSS rescore
  5. 2026-06-17 17:53 UTCEPSS rescore
  6. 2026-06-16 17:53 UTCEPSS rescore
  7. 2026-06-15 17:49 UTCEPSS rescore
  8. 2026-06-15 17:49 UTCEPSS rescore
  9. 2026-06-14 23:18 UTCEPSS rescore
  10. 2026-06-14 20:54 UTCEG score recompute
  11. 2026-06-14 08:17 UTCEG score recompute
  12. 2026-06-13 23:00 UTCEPSS rescore
  13. 2026-06-12 23:12 UTCEPSS rescore
  14. 2026-06-12 23:12 UTCEPSS rescore
  15. 2026-06-12 05:56 UTCEG score recompute
  16. 2026-06-11 17:20 UTCEG score recompute
  17. 2026-06-11 14:00 UTCEPSS rescore
  18. 2026-06-11 02:57 UTCEG score recompute
  19. 2026-06-10 22:19 UTCEPSS rescore
  20. 2026-06-10 13:22 UTCEPSS rescore
  21. 2026-06-10 12:40 UTCEG score recompute
  22. 2026-06-10 00:04 UTCEG score recompute
  23. 2026-06-09 11:28 UTCEG score recompute
  24. 2026-06-08 22:53 UTCEG score recompute
  25. 2026-06-08 14:17 UTCEPSS rescore
  26. 2026-06-08 06:00 UTCEG score recompute
  27. 2026-06-07 17:25 UTCEG score recompute
  28. 2026-06-07 15:25 UTCEPSS rescore
  29. 2026-06-07 04:49 UTCEG score recompute
  30. 2026-06-06 16:14 UTCEG score recompute
  31. 2026-06-06 13:47 UTCEPSS rescore
  32. 2026-06-06 03:38 UTCEG score recompute
  33. 2026-06-05 22:47 UTCEPSS rescore
  34. 2026-06-05 14:54 UTCEG score recompute
  35. 2026-06-05 06:10 UTCEPSS rescore
  36. 2026-06-05 02:18 UTCEG score recompute
  37. 2026-06-04 13:42 UTCEG score recompute
  38. 2026-06-04 13:12 UTCEPSS rescore
  39. 2026-06-04 01:06 UTCEG score recompute
  40. 2026-06-03 12:30 UTCEG score recompute
  41. 2026-06-02 23:54 UTCEG score recompute
  42. 2026-06-02 20:13 UTCEPSS rescore
  43. 2026-06-02 11:18 UTCEG score recompute
  44. 2026-06-01 22:42 UTCEG score recompute
  45. 2026-06-01 13:52 UTCEPSS rescore
  46. 2026-06-01 10:07 UTCEG score recompute
  47. 2026-05-31 22:30 UTCEPSS rescore
  48. 2026-05-31 00:16 UTCEPSS rescore
  49. 2026-05-29 13:44 UTCEPSS rescore
  50. 2026-05-28 13:44 UTCEPSS rescore
  51. 2026-05-27 13:40 UTCEPSS rescore
  52. 2026-05-27 13:40 UTCEPSS rescore
  53. 2026-05-26 13:44 UTCEPSS rescore
  54. 2026-05-26 07:18 UTCEPSS rescore
  55. 2026-05-21 22:43 UTCEPSS rescore
  56. 2026-05-20 22:38 UTCEPSS rescore
  57. 2026-05-20 14:39 UTCEG score recompute
  58. 2026-05-20 14:39 UTCGHSA enrichment
  59. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7723?
CVE-2026-7723 is a high vulnerability published on May 4, 2026. A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be…
When was CVE-2026-7723 disclosed?
CVE-2026-7723 was first published in the National Vulnerability Database on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7723 actively exploited?
CVE-2026-7723 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7723?
CVE-2026-7723 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-7723?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7723, 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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