CVEvulnerability

CVE-2026-44394

8.1 HIGH Published 2026-05-28 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-28
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.0 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-863

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.

Affected configurations

• openstack keystone (>= 14.0.0 < 27.0.2) • openstack keystone (>= 28.0.0 < 28.0.2) • openstack keystone (>= 29.0.0 < 29.0.2)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

Referenced by CWE · observed example (1)

  • CWE-1475 Incomplete Data/State Propagation weakness

References