GHSA-g7wq-wggw-vmhg · Severity: medium · Ecosystem: npm — ts-fns has prototype pollution vulnerability
A prototype pollution vulnerability exists in the ts-fns package versions prior to 13.0.7, where insufficient validation of user-provided keys in the assign function allows attackers to manipulate the Object.prototype chain. By leveraging this flaw, adversaries may inject arbitrary properties into the global object's prototype, potentially leading to application crashes, unexpected code execution behaviors, or bypasses of security-critical validation logic dependent on prototype integrity. The vulnerability stems from improper handling of deep property assignment operations within the library's public API functions. This issue remains unaddressed in the latest available version.
Conclusion & alert: CVE-2025-57351 is rated Moderate Risk (43/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.25%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-30 | 0.15% | 0.25% | +0.10% |
| 2 | 2026-02-21 | 0.07% | 0.15% | +0.09% |
| 3 | 2025-09-26 | — | 0.07% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-g7wq-wggw-vmhg · Severity: medium · Ecosystem: npm — ts-fns has prototype pollution vulnerability
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||