CVE-2026-44394

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 handlescopedtoken() 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.

Database specific

{
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44394.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "14.0.0"
                },
                {
                    "fixed": "27.0.2"
                },
                {
                    "introduced": "28.0.0"
                },
                {
                    "fixed": "28.0.2"
                },
                {
                    "introduced": "29.0.0"
                },
                {
                    "fixed": "29.0.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "14.0.0"
                },
                {
                    "fixed": "27.0.2"
                },
                {
                    "introduced": "28.0.0"
                },
                {
                    "fixed": "28.0.2"
                },
                {
                    "introduced": "29.0.0"
                },
                {
                    "fixed": "29.0.2"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "fixed": "29.0.2"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "cna_assigner": "mitre"
}

References

Affected packages

Git / github.com/openstack/keystone

Affected ranges

Type

GIT

Repo

https://github.com/openstack/keystone

Events

Introduced

c767e254979c96858a81cc4bbe8d9773d4dd539b

Fixed

b896b71557ce8370c442fe05818a74d7a9a623a8

Introduced

a568938e0c967a56ade269c93f42718008487b14

Fixed

3dfbbe7b9bd11dcd64420da0e4eda48b637f4a70

Introduced

3526925ae34a66e626bec985628a421a7694168e

Fixed

7b9f39226744b8db50a6d702cc5f715fc9c17f37

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "14.0.0"
        },
        {
            "fixed": "27.0.2"
        },
        {
            "introduced": "28.0.0"
        },
        {
            "fixed": "28.0.2"
        },
        {
            "introduced": "29.0.0"
        },
        {
            "fixed": "29.0.2"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*"
}

Affected versions

28.*

28.0.0

28.0.0.0rc1

28.0.1

29.*

29.0.0

29.0.0.0rc1

29.0.1

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44394.json"