usn-8008-1
Vulnerability from osv_ubuntu
Published
2026-02-03 13:06
Modified
2026-06-30 15:54
Summary
python-keystonemiddleware vulnerability
Details

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.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-22797",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-keystonemiddleware",
            "binary_version": "10.6.0-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-keystonemiddleware",
        "purl": "pkg:deb/ubuntu/python-keystonemiddleware@10.6.0-0ubuntu1.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.6.0-0ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.4.1-0ubuntu1",
        "10.5.0-0ubuntu1",
        "10.5.0-0ubuntu2",
        "10.6.0-0ubuntu1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-22797",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-keystonemiddleware",
            "binary_version": "10.12.0-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-keystonemiddleware",
        "purl": "pkg:deb/ubuntu/python-keystonemiddleware@10.12.0-0ubuntu1.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.12.0-0ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.9.0-0ubuntu1",
        "10.11.0-0ubuntu1",
        "10.12.0-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Grzegorz Grasza discovered that the Keystone Middleware incorrectly\nsanitized authentication headers before processing OAuth 2.0 tokens. An\nattacker could possibly use this issue to escalate privileges or\nimpersonate other users.",
  "id": "USN-8008-1",
  "modified": "2026-06-30T15:54:46Z",
  "published": "2026-02-03T13:06:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8008-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22797"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python-keystonemiddleware vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-22797"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.