PT-2026-88922

CVE-2026-56207

Published

2026-09-09

Updated

2026-09-11

Description by

CVSS 3.1

9.8

Critical

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Apache Impala versions 4.0.0 through 4.5.1

Description In the hs2-http interface, the signature of the Bearer token is not verified during the final step of SAML2 authentication. This flaw allows an attacker to alter the user name and forge identities to act as another user without requiring prior authentication.

Recommendations Upgrade to version 4.5.2.

Exploitability

Exploit

Fix

Impacts

Researchers

Andrew Rukin

Vendors

Affected products

Weakness enumeration

CWE-347: Improper Verification of Cryptographic Signature

Related identifiers