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CVE-2026-7723

PrefectHQ prefect WebSocket Endpoint in missing authentication

HIGH
7.3
CVSS Score
Published: May 4, 2026 at 02:30 AM UTC
Updated: October 26, 2026 at 07:10 PM UTC
2 products affected across 2 vendorsPrefectPrefect

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Severity
HIGH7.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

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 0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40. It is recommended to upgrade the affected component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (9)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/360899
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/360899/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/807256
Exploit
Source: cverecord
https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f
Issue TrackingPatch
Source: cverecord
https://github.com/PrefectHQ/prefect/pull/20372
Source: cverecord
https://github.com/PrefectHQ/prefect/commit/0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40
Patch
Source: cverecord
https://github.com/PrefectHQ/prefect/releases/tag/3.6.14
Product
Source: cverecord
https://github.com/PrefectHQ/prefect/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-306CWE-287

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