CVE-2026-56207

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.