CVE-2025-12758

Description

Versions of the package validator before 13.15.22 are vulnerable to Incomplete Filtering of One or More Instances of Special Elements in the isLength() function that does not take into account Unicode variation selectors (\uFE0F, \uFE0E) appearing in a sequence which lead to improper string length calculation. This can lead to an application using isLength for input validation accepting strings significantly longer than intended, resulting in issues like data truncation in databases, buffer overflows in other system components, or denial-of-service.

References

https://security.snyk.io/vuln/SNYK-JS-VALIDATOR-13653476

https://github.com/validatorjs/validator.js/pull/2616

https://gist.github.com/koral--/ad31208b25b9e3d1e2e35f1d4d72572e

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS