AIKIDO-2026-152211
@lexical/link is vulnerable to Cross-site Scripting (XSS)
50
Medium Risk
This Affects:
@lexical/linkTL;DR
Affected versions of @lexical/link are vulnerable to Cross-site Scripting (XSS) because LinkNode.sanitizeUrl() fails open when new URL() throws. Malformed dangerous schemes (for example crafted javascript: or control-character-obfuscated URLs) that the parser rejects can still be navigated by some browsers, so the attacker-controlled value is written into the anchor href unchanged. The fix fails closed by neutralizing unparseable non-allowlisted schemes to about:blank.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your application renders Lexical links from untrusted input (for example user-authored or collaborative content).
Background info
@lexical/link is vulnerable to Cross-site Scripting (XSS) in versions 0.11.0 - 0.47.0.
How to fix this
Upgrade the @lexical/link library to the patch version.
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SOC 2Compliant
ISO 27001Compliant