Login Request a demo
Medium severity · published May 4, 2026
CVE-2026-7722
PrefectHQ prefect Health Check API health endswith improper authentication
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was detected in PrefectHQ prefect up to 3.6.21. This impacts the function endswith of the file /api/health of the component Health Check API. Performing a manipulation results in improper authentication. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 3.6.22 will fix this issue. The patch is named e21617125335025b4b27e7d6f0ca028e8e8f3b79. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
prefect · PrefectHQ
3.6.0; 3.6.1; 3.6.2; 3.6.3; 3.6.4; 3.6.5; +16 more · source: vendor
Affected product
PR
prefect
PrefectHQ
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7722
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7722
gist.github.com
https://gist.github.com/nedlir/f576abbb0e491dc9bb7e106c140dda04
github.com
https://github.com/PrefectHQ/prefect/
github.com
https://github.com/PrefectHQ/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79
github.com
https://github.com/PrefectHQ/prefect/pull/21063
github.com
https://github.com/PrefectHQ/prefect/releases/tag/3.6.22
vuldb.com
https://vuldb.com/submit/807255
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