CVE-2026-44394_CVE-2026-44394

6 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Description

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.

Basic Information

ID CVE-2026-44394

Source mitre

Published May 28, 2026 at 00:00

Modified May 28, 2026 at 18:36

Affected Product

Vendor OpenStack

Product Keystone

Version 14.0.0

Affected Versions OpenStack Keystone 14.0.0
OpenStack Keystone 28.0.0
OpenStack Keystone 29.0.0

CWE Classification

CWE-863

References

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    "published": "2026-05-28T00:00:00.000Z",
    "modified": "2026-05-28T18:36:11.758Z",
    "type": "cve",
    "title": "CVE-2026-44394",
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