Is CVE-2026-49091 in the CISA KEV catalog?

No. CVE-2026-49091 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-49091?

CVE-2026-49091 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2026-49091?

CVE-2026-49091 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-49091?

Upgrade kibana to 7.17.15 or later.

CVE & CISA-KEV Catalog

CVE-2026-49091

HIGH

8.0

CVSS v3

NVD

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.

CWE-116

How to fix

Remediation Available

kibanaNVD

Affected:>= 7.0.0, < 7.17.15Fixed in:7.17.15CVE-2026-49091derived from NVD

Affected:>= 8.0.0, < 8.11.1Fixed in:8.11.1CVE-2026-49091derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory1

discuss.elastic.co

Related Vulnerabilities

Other CWE-116 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-38475	Critical	9.1	100%	KEV	Fix
CVE-2022-36446	Critical	9.8	96%	-	Fix
CVE-2021-31806	Medium	6.5	96%	-	Fix
CVE-2022-30781	High	7.5	88%	-	Fix
CVE-2022-36099	Critical	9.9	76%	-	Fix
CVE-2022-36100	Critical	9.9	74%	-	Fix

Embed a live status badge for CVE-2026-49091

Markdown

[![CVE-2026-49091](https://tridentstack.com/cve/badge/CVE-2026-49091.svg)](https://tridentstack.com/cve/CVE-2026-49091)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-49091"><img src="https://tridentstack.com/cve/badge/CVE-2026-49091.svg" alt="CVE-2026-49091"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-02.