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2 vulnerabilities found for by open-circle

CVE-2026-59952 (GCVE-0-2026-59952)
Vulnerability from cvelistv5
Published
2026-07-30 00:10
Modified
2026-07-30 14:42
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Summary
Valibot helps validate data using a schema. Versions prior to 1.4.2 can throw a TypeError inside its flatten() helper when validation issues contain attacker-controlled object keys such as toString, valueOf, or hasOwnProperty. The issue is reachable through normal record() validation. record() intentionally filters __proto__, prototype, and constructor, but it still accepts other own keys that collide with inherited Object.prototype properties. If the record key schema or value schema rejects such an entry, Valibot creates an issue path containing that key. Passing the resulting issues to Valibot's documented flatten() helper causes flatErrors.nested[dotPath] to resolve to the inherited method instead of an own error array, and the helper calls .push(...) on that function. This is not a global prototype pollution issue. The impact is availability/error handling: applications that validate user-controlled objects with record() and flatten validation errors for API responses can crash the request path with a TypeError instead of returning structured validation errors. This issue has been fixed in version 1.4.2.
References
Impacted products
Vendor Product Version
open-circle valibot Version: < 1.4.2
 Create a notification for this product.
Show details on NVD website

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CVE-2025-66020 (GCVE-0-2025-66020)
Vulnerability from cvelistv5
Published
2025-11-26 01:49
Modified
2025-11-26 14:16
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
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.
References
Impacted products
Vendor Product Version
open-circle valibot Version: >= 0.31.0, < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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