Is CVE-2026-78605 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-78605?

CVE-2026-78605 has a CVSS v3 severity of MEDIUM (5.9).

Back

CVE-2026-78605

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.