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Vulnerability · Published Jul 1, 2026 · Assigned by elastic

CVE-2026-49091Improper Output Neutralization for Logs in Kibana Leading to Log Injection

High 8.0

In plain English

A high-severity security flaw in Kibana from Elastic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.3%top 75.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.

Affected products (as reported)

VendorProductVersions
Elastic Kibana 8.0.0 – through 8.11.07.0.0 – through 7.17.14

Weakness: CWE-116 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

References