CVE-2026-44394 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-44394HIGH

OpenStack Keystone — An issue was discovered in OpenStack Keystone before 29.0.2.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  H  H  N    8.1   .0025   16.6     —

AFFECTED
  Product   Versions  Fixed
  Keystone  14.0.0 –  —

TIMELINE
  May 5   Reserved by mitre
  May 28  EXPLOIT PUBLISHED — CVE-2026-44394 (OpenStack Keystone). Public exploit reference added.
  May 28  Published (CNA: mitre)

CWE-863 · CNA: mitre · CVSS v3.1 · 2 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 5, 2026	Reserved	Reserved by mitre
May 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44394 (OpenStack Keystone). Public exploit reference added.
May 28, 2026	Published	Published (CNA: mitre)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
OpenStack	Keystone	—	14.0.0	—

Weaknesses

CWE-863

References (2)

https://bugs.launchpad.net/keystone/+bug/2150379 [Exploit, Issue Tracking, Patch, Third Party Advisory]
https://security.openstack.org/ossa/OSSA-2026-015.html [Patch, Vendor Advisory]

Authoritative record: CVE-2026-44394 at cve.org

Vendors: openstack

Weaknesses: CWE-863

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44394 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.