CVE-2026-56207
Last modified
CVE-2026-56207 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Impala | >= 4.0.0, < 4.5.2 |
References
- https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zsMailing List, Vendor Advisory
- https://www.openwall.com/lists/oss-security/2026/09/08/22Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
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