CVE-2026-18639

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Source
https://cve.org/CVERecord?id=CVE-2026-18639
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18639.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-18639
Downstream
Related
Published
2026-08-11T15:05:42Z
Modified
2026-10-28T02:30:40Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Velociraptor OIDC Authenticator susceptible to email spoofing
Details

When Velociraptor is configured to use an OIDC IdP for authentication, it uses the email claim as a username. However, some IdP allow users to change the email claim without verification. Some IdPs do not set the "email_verified" claim and do not actually verify the email.

This allows a user to impersonate another user by setting their email address within the IdP, allowing account takeover.

Database specific 
{
    "cna_assigner":  "rapid7",
    "cwe_ids":  [
        "CWE-290"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18639.json"
}
References

Affected packages

Git / github.com/velocidex/velociraptor

Affected ranges

Type
GIT
Repo
https://github.com/velocidex/velociraptor
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c0c9dd609140139efcb37c47e2afa79ed57e6c84
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.77.2"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

0.*
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
v0.*
v0.1
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.5-1
v0.5.6
v0.5.7
v0.5.8-rc1
v0.5.9-rc1
v0.6.0-rc1
v0.6.1-rc1
v0.6.2-rc1
v0.6.3-rc1
v0.6.4-rc1
v0.6.7-rc1
v0.6.8-rc1
v0.7.0
v0.7.0-rc1
v0.72
v0.73
v0.74
v0.75
v0.76.1-rc1
v0.77.1
v0.77.1-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18639.json"