Vulnerability Report

CVE-2026-49091

Title: Log Injection via Improper Output Neutralization

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-49091.

CWE Category CWE-116
Published Date Jul 01, 2026
Modified Date Jul 02, 2026
Exploit Status Not Found
Score 8.0 CVSS v3.1
Exploit Probability (EPSS)
0.20%

Vulnerability Summary

CVE-2026-49091: 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.

Impacted Vendors

E
elastic 1
E
elasticsearch 1

Reference Links

https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.0
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-49091 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected Stack

No specific products linked.