Skip to content
CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-78605

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in Elasticsearch Leading to Information Disclosure

Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') (CWE-444) in Elasticsearch can lead to information disclosure via HTTP Request Smuggling (CAPEC-33). Under specific proxy deployment configurations, a network attacker could obtain confidential responses intended for other authenticated users.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Elastic Elasticsearch

Default version status: unaffected

  • 8.18.0 to ≤ 8.19.19affected
  • 9.0.0 to ≤ 9.4.4affected
  • 9.5.0affected

References