CVE-2026-56207
Apache Impala: SAML authentication bypass via forged bearer token
- State
- Published
- Severity
- 9.8 Critical
- Published
- Sep 9, 2026
- Updated
- Sep 10, 2026
- Reserved
- Jun 19, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-347 Improper Verification of Cryptographic Signature
Affected Products
| Product | Versions |
|---|---|
Apache ImpalaApache Software Foundation |
|
References
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