Description
Velociraptor contains a deadlock condition that may be triggered by authenticated users. The issue stems from a lock management bug in the user management module.
Published: 2026-09-24
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch ASAP
AI Analysis

Impact

A deadlock condition exists in Velociraptor’s user management module that can be triggered by authenticated users. The lock management bug causes the system to wait indefinitely for a lock that is never released, leading to a hang of the application and ultimately denying legitimate user access. The weakness is a classic lock ordering failure (CWE‑833) and affects only availability, not confidentiality or integrity.

Affected Systems

Rapid7 Velociraptor is the affected vendor. No specific affected version information is provided, so any installed instance of Velociraptor could be vulnerable until updated.

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity. The EPSS score is not available and the vulnerability is not listed in KEV. The likely attack vector requires an authenticated session; an attacker with valid credentials can trigger the deadlock by performing user management operations. Attack conditions include the presence of simultaneous or repeated user actions that lead to a lock contention scenario.

Generated by OpenCVE AI on September 26, 2026 at 02:47 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Velociraptor to the latest release that includes the deadlock fix (commit b64d915422da2e8366781bea2b5c5e6808df829c).
  • If an update is not possible, reduce concurrent operations on user management or limit user privileges to lower the chance of lock contention.
  • Enable detailed logging for lock acquisition failures and set up alerts for service unavailability to detect and respond to incidents quickly.

Generated by OpenCVE AI on September 26, 2026 at 02:47 UTC.

Tracking

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Advisories

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History

Fri, 25 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
First Time appeared Rapid7
Rapid7 velociraptor
Vendors & Products Rapid7
Rapid7 velociraptor

Thu, 24 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 14:00:00 +0000

Type Values Removed Values Added
Description Velociraptor contains a deadlock condition that may be triggered by authenticated users. The issue stems from a lock management bug in the user management module.
Title Velociraptor Authenticated Denial of Service
Weaknesses CWE-833
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Rapid7 Velociraptor
cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published:

Updated: 2026-09-24T14:48:39.415Z

Reserved: 2026-08-21T13:21:31.511Z

Link: CVE-2026-77798

cve-icon Vulnrichment

Updated: 2026-09-24T14:48:36.784Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-24T14:18:17.373

Modified: 2026-09-24T21:00:46.893

Link: CVE-2026-77798

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T03:00:03Z

Weaknesses