Medium 6.5Published Jan 16, 2026

CVE-2026-23769lucy-xss-filter before commit e5826c0 allows an attacker to execute malicious JavaScript due to improper sanitization caused by misconfigured default superset rule files.

Updated under an hour ago (Oct 26, 2026, 5:10 PM ET)

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It affects NAVER lucy-xss-filter and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for NAVER lucy-xss-filter

Exploited in the last 30 days

lucy-xss-filter before commit e5826c0 allows an attacker to execute malicious JavaScript due to improper sanitization caused by misconfigured default superset rule files.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A: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: naver
NVD analysis: Analyzed
Record last updated: Jan 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

NAVER lucy-xss-filter naver:lucy_xss_filter (from the name)	e5826c0d26b4f546955279767bbe94e5c7ed3f15 not affected	CNA record
naver lucy-xss-filter naver:lucy-xss-filter	before 2025-06-08	NVD

References

References

https://cve.naver.com/detail/cve-2026-23769.html	vendor-advisory
https://github.com/naver/lucy-xss-filter/pull/32	mitigation, patch

The CVE record on cve.org NVD's entry

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.