CVE-2025-12758Incomplete Filtering of One or More Instances of Special Elements in Project Validator

Severity
7.7HIGHNVD
EPSS
0.1%
top 73.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 27

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 over

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Packages3 packages

CVEListV5validator_project/validator< 13.15.22

Patches

🔴Vulnerability Details

3
OSV
Validator is Vulnerable to Incomplete Filtering of One or More Instances of Special Elements2025-11-27
GHSA
Validator is Vulnerable to Incomplete Filtering of One or More Instances of Special Elements2025-11-27
CVEList
CVE-2025-12758: Versions of the package validator before 132025-11-27
CVE-2025-12758 — Project Validator vulnerability | cvebase