CVE-2026-23768

Name: CVE-2026-23768
Creator: NVD / NIST
Published: 2026-01-16T06:15:51.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2026-23768 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. lucy-xss-filter before commit 7c1de6d allows an attacker to induce server-side HEAD requests to arbitrary URLs when the ObjectSecurityListener or EmbedSecurityListener option is enabled and embed or object tags are used with a src attribute missing a file extension.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

lucy-xss-filter before commit 7c1de6d allows an attacker to induce server-side HEAD requests to arbitrary URLs when the ObjectSecurityListener or EmbedSecurityListener option is enabled and embed or object tags are used with a src attribute missing a file extension.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.22%

12.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Naver	Lucy-Xss-Filter	< 2025-06-08

References

https://cve.naver.com/detail/cve-2026-23768.htmlVendor Advisory
https://github.com/naver/lucy-xss-filter/pull/31Exploit, Patch

Timeline

Published: Jan 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23768?

How severe is CVE-2026-23768?

CVE-2026-23768 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23768?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23768?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST