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CVE-2021-3765

25
FAUCET Score

CVE-2021-3765 describes an Inefficient Regular Expression Complexity vulnerability (CWE-1333) affecting the validator.js library within the validator_project validator. This vulnerability carries a CVSS score of 7.5 HIGH, indicating it can be exploited remotely with low attack complexity, potentially leading to a denial of service (A:H) without requiring user interaction or privileges. There is currently no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Furthermore, the CVE has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 13.7.0CPE matchmatch criteria
cpe:2.3:a:validator_project:validator:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 57th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: validatorFixed in: 13.7.0
redhatpatch availablevia redhat_api
Product: RHODF-4.13-RHEL-9Fixed in: odf4/mcg-core-rhel9:v4.13.0-41
View patch
redhatpatch availablevia redhat_api
Product: RHODF-4.12-RHEL-8Fixed in: odf4/mcg-core-rhel8:v4.12.10-2
View patch
redhatvendor investigatingvia redhat_api
Product: Migration Toolkit for VirtualizationFixed in: migration-toolkit-virtualization/mtv-ui-rhel8
redhatno patchvia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: noobaa-core-container
redhatno patchvia redhat_api
Product: Red Hat Openshift Container Storage 4Fixed in: ocs4/mcg-core-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: odf4/odf-multicluster-console-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/grc-ui-rhel8
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-console
redhatend of lifevia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: odf4/odf-console-rhel8

Vendor Advisories (2)

npmGHSA-qgmg-gppg-76g5medium

Inefficient Regular Expression Complexity in validator.js

Nov 3, 2021
redhatCVE-2021-3765Moderate

validator: Inefficient Regular Expression Complexity in Validator.js

Nov 2, 2021

References

github.com / validatorjs/validator.js/commit/496fc8b2a7f5997acaaec33cc44d0b8dba5fb5e1
PatchThird Party Advisory
huntr.dev / bounties/c37e975c-21a3-4c5f-9b57-04d63b28cfc9
ExploitIssue TrackingPatchThird Party Advisory