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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 Reserved 2025-11-21 | Published 2025-11-26 | Updated 2025-11-26 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-1333: Inefficient Regular Expression Complexity

Product status

>= 0.31.0, < 1.2.0
affected

References

github.com/...alibot/security/advisories/GHSA-vqpr-j7v3-hqw9

github.com/...ommit/cfb799db301a953a0950d5c05a34a3ab121262dc

cve.org (CVE-2025-66020)

nvd.nist.gov (CVE-2025-66020)

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