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CVE-2026-44394

6.0 MEDIUM

An issue was discovered in OpenStack Keystone before 29.0.2

Published: 2026-05-28 · Last updated: 2026-06-02

Severity and scoring

CVSS
6.0 MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
CWE
CWE-863

Affected products

VendorProduct
openstackkeystone

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.

Source: NVD

References

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