UBUNTU-CVE-2026-82466

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Source
https://ubuntu.com/security/CVE-2026-82466
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82466.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-82466
Upstream
Published
2026-08-29T17:17:00Z
Modified
2026-10-17T13:01:11Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Rodauth before 2.46.0 contains an authentication bypass vulnerability in the webauthn_login route that allows logged-in users to authenticate as any other account. Attackers can exploit improper account resolution logic that falls back to session account identifiers instead of validating the credential binding to complete authentication as arbitrary users.

References

Affected packages

Ubuntu:26.10 / ruby-rodauth

Package

Name
ruby-rodauth
Purl
pkg:deb/ubuntu/ruby-rodauth?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.43.0-1
2.44.0-1
2.45.0-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-rodauth",
            "binary_version":  "2.45.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82466.json"