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Medium 5.3Published Feb 18, 2026

CVE-2026-1441Reflected Cross-Site Scripting (XSS) vulnerability in Graylog Web Interface

Updated under an hour ago ()

Does this affect you?

It affects Graylog Web Interface and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Reflected Cross-Site Scripting (XSS) vulnerability in the Graylog Web Interface console, version 2.2.3, caused by a lack of proper sanitization and escaping in HTML output. Several endpoints include segments of the URL directly in the response without applying output encoding, allowing an attacker to inject and execute arbitrary JavaScript code when a user visits a specially crafted URL. Exploitation of this vulnerability may allow script execution in the victim's browser and limited manipulation of the affected user's session context, through the  '/system/index_sets/' endpoint.

CVSS
5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
INCIBE
NVD analysis
Analyzed
Record last updated
Feb 18, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Graylog Graylog Web Interface
graylog:web_interface (from the name)
2.2.3
CNA record
graylog graylog
graylog:graylog
2.2.3
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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