CVE-2026-7724

MEDIUMNVD 5.05.0—
EchelonGraph scoreMEDIUM confidence

Score 5.0 from GitHub Security Advisory (severity: LOW) published 2026-05-04. NVD baseline CVSS 5.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.0Exploit: NoneExposed: 0

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

A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS v3
5.0
EG Score
5.0(medium)
EPSS
16.2%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 4, 2026

Advisory Details (6)

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

Linear

https://linear.app/prefect/issue/OSS-7874/fix-dns-rebinding-toctou-bypass-in-validate-restricted-url
generic

Release 3.6.28.dev2: Nightly Development Release · PrefectHQ/prefect · GitHub

https://github.com/PrefectHQ/prefect/releases/tag/3.6.28.dev2
generic

Fix DNS rebinding TOCTOU bypass in `validate_restricted_url` by devin-ai-integration[bot] · Pull Request #21591 · PrefectHQ/prefect · GitHub

https://github.com/PrefectHQ/prefect/pull/21591
generic

Fix DNS rebinding TOCTOU bypass in `validate_restricted_url` (#21591) · PrefectHQ/prefect@7c70ac5 · GitHub

https://github.com/PrefectHQ/prefect/commit/7c70ac54a5e101431d83b9f2681ec88d5e0021ed
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/fa99777e8989414585d08c3625bf044a

Vendor Advisories for CVE-2026-7724(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 (774 versions)3.6.28.dev2—

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7724?
CVE-2026-7724 is a medium vulnerability published on May 4, 2026. A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validaterestrictedurl of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is…
When was CVE-2026-7724 disclosed?
CVE-2026-7724 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-2026-7724 actively exploited?
CVE-2026-7724 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7724?
CVE-2026-7724 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-7724?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7724, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-7724

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