Grzegorz Grasza discovered that the Keystone Middleware incorrectly sanitized authentication headers before processing OAuth 2.0 tokens. An attacker could possibly use this issue to escalate privileges or impersonate other users.
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "10.6.0-0ubuntu1.1",
"binary_name": "python3-keystonemiddleware"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8008-1.json"
{
"ecosystem": "Ubuntu:24.04:LTS",
"cves": [
{
"id": "CVE-2026-22797",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "10.12.0-0ubuntu1.1",
"binary_name": "python3-keystonemiddleware"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8008-1.json"
{
"ecosystem": "Ubuntu:25.10",
"cves": [
{
"id": "CVE-2026-22797",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}