CVE-2026-18972: Rapid7 Velociraptor · Authentication Bypass by Spoofing
Affects Rapid7 VelociraptorSource CVE Database V5
Not known to be exploited · CVSS 9.6 Critical : upgrade to 0.77.2 as a priority.
Data as of 9 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.77.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade Rapid7 Velociraptor to 0.77.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Rapid7Velociraptor | Affected
| Fixed in
|
GitHubVelociraptorpkg:github/VelociraptorOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, restrict access to trusted users only and monitor for suspicious use of the 'Grpc-Metadata-USER' header in requests. Avoid exposing the Velociraptor GUI to untrusted networks.
Description
An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \"Grpc-Metadata-USER\". This can lead to an account takeover attack from a user with low privileges to administrator.