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DEBIAN-CVE-2026-44394

Type: advisorySource: OSV1 source record

An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone federated token rescoping mechanism does not propagate the original token's expiry to the newly issued token. When a federated user rescopes a token via POST /v3/auth/tokens, the handle_scoped_token() function in the mapped authentication plugin returns response data without an expires_at value. The token provider falls back to issuing a token with a fresh default TTL. By rescoping repeatedly before each token expires, a user can maintain access indefinitely, bypassing operator-configured token lifetime policies. This is a variant of CVE-2012-3426. Only deployments using federated identity (SAML2, OpenID Connect) are affected.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-44394

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-44394

keystone

Source reference: /affected/0/package/name

Affected versions
2:22.0.0-2

Source reference: /affected/0/versions

2:22.0.2-0+deb12u1

Source reference: /affected/0/versions

2:22.0.2-0+deb12u2

Source reference: /affected/0/versions

Fixed versions
2:22.0.2-0+deb12u3

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

keystone

Source reference: /affected/1/package/name

Affected versions
2:27.0.0-3

Source reference: /affected/1/versions

2:27.0.0-3+deb13u1

Source reference: /affected/1/versions

2:27.0.0-3+deb13u3

Source reference: /affected/1/versions

Fixed versions
2:27.0.0-3+deb13u4

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

keystone

Source reference: /affected/2/package/name

Affected versions
2:27.0.0-3

Source reference: /affected/2/versions

2:28.0.0-1

Source reference: /affected/2/versions

2:28.0.0-2

Source reference: /affected/2/versions

2:28.0.0-3

Source reference: /affected/2/versions

2:28.0.0-4

Source reference: /affected/2/versions

2:28.0.0-5

Source reference: /affected/2/versions

2:28.0.0-6

Source reference: /affected/2/versions

2:28.0.0~rc1-1

Source reference: /affected/2/versions

2:28.0.0~rc1-2

Source reference: /affected/2/versions

2:28.0.0~rc1-4

Source reference: /affected/2/versions

2:29.0.0-1

Source reference: /affected/2/versions

2:29.0.0-2

Source reference: /affected/2/versions

2:29.0.0-3

Source reference: /affected/2/versions

2:29.0.0~rc1-1

Source reference: /affected/2/versions

2:29.0.0~rc1-2

Source reference: /affected/2/versions

2:29.0.1-1

Source reference: /affected/2/versions

Fixed versions
2:29.0.1-2

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:22.0.2-0+deb12u3"
          }
        ]
      }
    ],
    "package": {
      "name": "keystone",
      "purl": "pkg:deb/debian/keystone?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2:22.0.0-2",
      "2:22.0.2-0+deb12u1",
      "2:22.0.2-0+deb12u2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44394.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:27.0.0-3+deb13u4"
          }
        ]
      }
    ],
    "package": {
      "name": "keystone",
      "purl": "pkg:deb/debian/keystone?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2:27.0.0-3",
      "2:27.0.0-3+deb13u1",
      "2:27.0.0-3+deb13u3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44394.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:29.0.1-2"
          }
        ]
      }
    ],
    "package": {
      "name": "keystone",
      "purl": "pkg:deb/debian/keystone?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2:27.0.0-3",
      "2:28.0.0-1",
      "2:28.0.0-2",
      "2:28.0.0-3",
      "2:28.0.0-4",
      "2:28.0.0-5",
      "2:28.0.0-6",
      "2:28.0.0~rc1-1",
      "2:28.0.0~rc1-2",
      "2:28.0.0~rc1-4",
      "2:29.0.0-1",
      "2:29.0.0-2",
      "2:29.0.0-3",
      "2:29.0.0~rc1-1",
      "2:29.0.0~rc1-2",
      "2:29.0.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44394.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57128 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. DEBIAN-CVE-2026-44394 · Revision 1Source updated