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.
Published: 2025-11-26
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-vqpr-j7v3-hqw9 Valibot has a ReDoS vulnerability in `EMOJI_REGEX`
History

Fri, 28 Nov 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Open-circle
Open-circle valibot
Vendors & Products Open-circle
Open-circle valibot

Wed, 26 Nov 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 26 Nov 2025 02:00:00 +0000

Type Values Removed Values Added
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.
Title Valibot has a ReDoS vulnerability in `EMOJI_REGEX`
Weaknesses CWE-1333
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Open-circle Valibot
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-11-26T14:16:54.610Z

Reserved: 2025-11-21T01:08:02.613Z

Link: CVE-2025-66020

cve-icon Vulnrichment

Updated: 2025-11-26T14:15:47.295Z

cve-icon NVD

Status : Deferred

Published: 2025-11-26T02:15:49.540

Modified: 2026-06-17T09:56:11.270

Link: CVE-2025-66020

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-28T08:51:39Z

Weaknesses