CVE-2026-56207

critical · 9.8

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.

9.8

CVSS

0.5%

EPSS (exploit prob.)

40th

EPSS percentile

2026-09-09

Published

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

Weaknesses

CWE-347

Affected products

Vendor	Product	Affected versions
apache	impala	>= 4.0.0, < 4.5.2

Check a specific version with /api/v1/cve/match.

References

https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zs
http://www.openwall.com/lists/oss-security/2026/09/08/22

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-56207