CVE-2025-66020
High · 7.5CVSS
7.5
EPSS
0.3%
Published
Nov 26, 2025
CISA due date
—
The record
Valibot helps validate data using a schema. In versions from 0.31.0 to 1.1.0, the EMOJI_REGEX used in the emoji action is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. A short, maliciously crafted string (e.g., <100 characters) can cause the regex engine to consume excessive CPU time (minutes), leading to a Denial of Service (DoS) for the application. This issue has been patched in version 1.2.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | valibot | 0.31.0 | 1.2.0 |
Related vulnerabilities
- GHSA-vqpr-j7v3-hqw9 Valibot has a ReDoS vulnerability in `EMOJI_REGEX` Same vulnerability
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