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CVE-2026-23768

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Date: January 16, 2026

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.

Severity Score

Related Resources (4)

https://cve.naver.com/detail/cve-2026-23768.html
https://nvd.nist.gov/vuln/detail/CVE-2026-23768
https://github.com/naver/lucy-xss-filter/pull/31
https://www.mend.io/vulnerability-database/CVE-2026-23768

Severity Score

Weakness Type (CWE)

Server-Side Request Forgery (SSRF)

CWE-918

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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