CVE-2025-66020Valibot has a ReDoS vulnerability in `EMOJI_REGEX`
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-1333
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Nov 26, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
open-circle valibot open_circle:valibot (from the name) | from 0.31.0, < 1.2.0 | CNA record |
References
- https://github.com/open-circle/valibot/security/advisories/GHSA-vqpr-j7v3-hqw9x-refsource-confirm
- https://github.com/open-circle/valibot/commit/cfb799db301a953a0950d5c05a34a3ab121262dcx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.