CVE
CVE-2026-56207
Apache Impala: SAML authentication bypass via forged bearer token
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.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
Related Resources
No items found.
References
http://www.openwall.com/lists/oss-security/2026/09/08/22, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56207.json, https://lists.apache.org/thread/20cov78py0zqzx7dyq39ktythkwn91zs, https://nvd.nist.gov/vuln/detail/CVE-2026-56207