7.5
High
CVE-2026-3514 In version 3.6.19 of prefecthq/prefect, an authentication bypass vulnerability exists due to the improper handling of…
Description
In version 3.6.19 of prefecthq/prefect, an authentication bypass vulnerability exists due to the improper handling of URL path exemptions for health check probes. Specifically, the authentication middleware exempts any URL path ending with 'health' or 'ready' from authentication checks. This allows an attacker to create resources with names ending in 'health' or 'ready' and access them without authentication. Affected endpoints include those for variables, flows, work pools, work queues, and deployments. This vulnerability can lead to unauthorized access to sensitive information, such as API keys and database credentials, stored in Prefect Variables.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| prefecthq/prefect 3.6 | earliest → < 3.6.22 | 3.6.22 |
Other CVEs of prefecthq/prefect
The 5 CVEs of prefecthq/prefect →
CVE-2026-5366
Prefect version 3.6.23 is vulnerable to remote code execution due to improper handling of user-controlled input in the…
9.9
Critical
CVE-2026-3515
A vulnerability in the `GitHubRepository` block of the `prefect-github` integration in Prefect version 3.6.18 allows…
8.5
High
CVE-2024-8183
A CORS (Cross-Origin Resource Sharing) misconfiguration in prefecthq/prefect version 2.20.2 allows unauthorized…
7.6
High
CVE-2023-6022
Cross-Site Request Forgery (CSRF) in GitHub repository prefecthq/prefect prior to 2.16.5
8.8
High