Vulnerability details
CVE-2025-66020
open-circle valibot
Valibot has a ReDoS vulnerability in `EMOJI_REGEX`
CVSS 3.1
7.5High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| open-circle | valibot | >= 0.31.0, < 1.2.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2025-11-26
- Last updated
- 2025-11-26
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
29.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-1333Inefficient Regular Expression Complexity