CVE-2026-56207

CriticalCVSS 9.8/10Last modified Sep 10, 2026

Description

Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as another user.

This issue affects Apache Impala: >=4.0.0.

Users are recommended to upgrade to version 4.5.2, which fixes this issue.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
Apache Software Foundation	Apache Impala	>= 4.0.0, <= 4.5.1

References

https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zsMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/08/22Mailing List, Third Party Advisory

Timeline

Published: Sep 9, 2026
Last modified: Sep 10, 2026
NVD status: Analyzed

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