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TI-2017-03640 Aliases CVE-2017-5640GHSA-pprr-66x6-xjr8

Improper authentication in Apache Impala

Priority MEDIUM 47CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

It was noticed that a malicious process impersonating an Impala daemon in Apache Impala (incubating) 2.7.0 to 2.8.0 could cause Impala daemons to skip authentication checks when Kerberos is enabled (but TLS is not). If the malicious server responds with 'COMPLETE' before the SASL handshake has completed, the client will consider the handshake as completed even though no exchange of credentials has happened.

Why it matters now

EPSS 0.02852 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Impala2.7.0 to 2.8.0 incubating—No fix listedCNA
  • Apache Impala VendorApache Affected 2.7.0 to 2.8.0 incubating Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:apache:impala:2.7.0:*:*:*:*:*:*:*2.7.0VulnerableApache
cpe:2.3:a:apache:impala:2.8.0:*:*:*:*:*:*:*2.8.0VulnerableApache
  • cpe:2.3:a:apache:impala:2.7.0:*:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Apache
  • cpe:2.3:a:apache:impala:2.8.0:*:*:*:*:*:*:* Versions 2.8.0 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-5640
  2. 2026-10-03 Alias added: GHSA-pprr-66x6-xjr8

References

Other 1

  • TI-2026-40572 Apache Impala: SAML authentication bypass via forged bearer token CVSS 3.1CRITICAL 9.8
  • TI-2018-08448 Incorrect permission assignment in Apache Impala CVSS 3.0CRITICAL 9.8
  • TI-2026-41667 Apache Impala: Secrets Exfiltration via SSRF CVSS 3.1HIGH 8.8
  • TI-2021-09365 Impala logs contain secrets CVSS 3.1HIGH 7.5
  • TI-2026-46513 Apache Impala: RCE via External Data Source Class Loading CVSS 3.1HIGH 8.1
  • TI-2019-07409 Session fixation in Apache Impala CVSS 3.1HIGH 7.5
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences