CVE-2026-23769

MEDIUM 6.1CVE-2026-23769 · Published 16/01/2026 · updated 17/06/2026

In short

CVE-2026-23769 is a MEDIUM (CVSS 6.1) vulnerability affecting lucy-xss-filter (naver).
Chance of exploitation in the next 30 days (EPSS): 0.22%, higher than 12.6% of all vulnerabilities.
Fix: update to 2025-06-08 or later.

Package	Affected versions	Patched versions
lucy-xss-filter naver	`< 2025-06-08`	`2025-06-08`

Description

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

References

cve.naver.com/detail/cve-2026-23769.html · Vendor Advisory
naver/lucy-xss-filter#32 · Patch

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