CVE catalog
CVE-2021-3765
UBUNTU-
validator.js is vulnerable to Inefficient Regular Expression Complexity
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.78% · Oct 27, 2026
Reported versions and fixes
Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Ubuntu18.04 | validator.js | 4.7.1+dfsg1-1.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
| Ubuntu16.04 | validator.js | 3.17.0+dfsg1-1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
| Ubuntu16.04 | validator.js | 4.7.1+dfsg1-1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
Provider details and historical evidence
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Ubuntu16.04 | validator.js | 3.17.0+dfsg1-1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
| Ubuntu16.04 | validator.js | 4.7.1+dfsg1-1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
| Ubuntu18.04 | validator.js | 4.7.1+dfsg1-1.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2021-3765] |
Original provider fields
{
"package_releases": [],
"fixed_versions": [],
"distribution_packages": [
{
"name": "validator.js",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "16.04",
"versions": [
"3.17.0+dfsg1-1",
"4.7.1+dfsg1-1"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-3765",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2021-3765",
"provider_updated_at": "2025-10-24T04:49:57Z",
"applicability_unknown": true
},
{
"name": "validator.js",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "18.04",
"versions": [
"4.7.1+dfsg1-1.1"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-3765",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2021-3765",
"provider_updated_at": "2025-10-24T04:49:57Z",
"applicability_unknown": true
}
]
}OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
Observed: