CVE-2025-66020

HIGH EPSS 20.6%
Published Nov 26, 20257mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Nov 26, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
20.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-1333

References 2

  • github.com https://github.com/open-circle/valibot/commit/cfb799db301a953a0950d5c05a34a3ab121262dc
  • github.com https://github.com/open-circle/valibot/security/advisories/GHSA-vqpr-j7v3-hqw9

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.