CVE-2026-43001 - CERT CVE
ID CVE-2026-43001
Sažetak An issue was discovered in OpenStack Keystone 13 through 29. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.
Reference
CVSS
Base: 7.9
Impact: 6.0
Exploitability:1.3
Pristup
VektorSloženostAutentikacija
NETWORK HIGH HIGH
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH LOW
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Zadnje važnije ažuriranje 04-05-2026 - 18:25
Objavljeno 01-05-2026 - 09:16