CVE-2026-7724: PrefectHQ prefect Webhook/Notification validate_restricted_url toctou
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 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
PrefectHQ prefect Webhook/Notificationto a version that resolves this vulnerability.Fixed in 3.6.28.dev2Patch 7c70ac54a5e101431d83b9f2681ec88d5e0021ed
Event History
Frequently Asked Questions
What is the severity of CVE-2026-7724?
CVE-2026-7724 has a severity rating that indicates it poses a significant security risk due to time-of-check time-of-use vulnerabilities.
How do I fix CVE-2026-7724?
To fix CVE-2026-7724, update the Prefect library to a version newer than 3.6.28.dev1 that includes security patches.
What are the potential impacts of CVE-2026-7724?
The potential impacts of CVE-2026-7724 include unauthorized access or manipulation of webhook notifications, compromising the integrity of the application.
Which versions are affected by CVE-2026-7724?
CVE-2026-7724 affects all versions of PrefectHQ prefect up to and including 3.6.28.dev1.
Is CVE-2026-7724 exploitable remotely?
Yes, CVE-2026-7724 is potentially exploitable remotely, as it involves webhook/notification mechanisms that can be triggered over a network.