CVE•Published 2026-09-01•Modified 2026-09-02•0 articles on news•4 live references•NVD data

CVE-2026-78605Elastic · Elasticsearch

Vulnerability data via NVD (ingested)

CVSS v3.1

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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.

Timeline

Published 2026-09-01

Modified 2026-09-02

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag472 hosts

vuln:CVE-2026-78605

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Elastic Elasticsearch"

All exposed Elastic Elasticsearch instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Elasticsearch"

HTTP body or banner mentions "Elasticsearch" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-78605