CVE-2021-3765

mediumpriority · track · 31EPSS 0.018 · 78 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.78% (78th) EPSS

CVSS 5 · medium

Is it mine?

33 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-22

validator.js is vulnerable to Inefficient Regular Expression Complexity

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · security@huntr.devexploitability 3.9 · impact 1.4

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1333USprimaryCWE-1333US

affected products (33)

Products and version ranges known to be affected.

Atlassian Bitbucket <10.0.2all versionscert_bundDE
Atlassian Bitbucket <8.19.25 (LTS)all versionscert_bundDE
Atlassian Bitbucket <9.4.13 (LTS)all versionscert_bundDE
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Meinberg LANTIME <7.08.007all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux Advanced Cluster Security for Kubernetes 4all versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security_for_kubernetes_4
Red Hat Enterprise Linux Service Interconnect 1all versionscert_bundDEcpe:/o:redhat:enterprise_linux:service_interconnect_1
Red Hat OpenShiftall versionscert_bundDEcpe:/a:redhat:openshift:-
Red Hat OpenShift Container Platform 4.12all versionscert_bundDEcpe:/a:redhat:openshift:container_platform_4.12
Red Hat OpenShift Container Platform <4.11.44all versionscert_bundDE
Red Hat OpenShift Container Platform <4.12.22all versionscert_bundDE
Red Hat OpenShift Container Platform <4.12.46all versionscert_bundDE
Red Hat OpenShift Container Platform <4.13.4all versionscert_bundDE
Red Hat OpenShift Container Platform <4.14.0all versionscert_bundDE
Red Hat OpenShift Data Foundation <4.12.10all versionscert_bundDE
Red Hat OpenShift Data Foundation <4.13.0all versionscert_bundDE
Atlassian Bitbucket< 10.0.2cert_bundDE

showing 20 of 33

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1375JFrog Artifactory: Mehrere SchwachstellenDeutsch2022-09-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in JFrog Artifactory ausnutzen, um seine Privilegien zu erweitern, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen und einen Denial-of-Service-Zustand auszulösen.
WID-SEC-W-2023-0809IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2023-03-30csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen, Informationen falsch darzustellen, einen Denial of Service Zustand herbeizuführen, Sicherheitsvorkehrungen zu umgehen, einen Cross-Site-Scripting-Angriff durchzuführen oder unbekannte Auswirkungen zu verursachen.
WID-SEC-W-2023-1542Red Hat OpenShift: Mehrere SchwachstellenDeutsch2023-06-22csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen, Dateien zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.
GHSA-qgmg-gppg-76g5Inefficient Regular Expression Complexity in validator.js2021-11-03ghsa · osvUS
validator.js prior to 13.7.0 is vulnerable to Inefficient Regular Expression Complexity

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2021-11-02modified 2026-06-17

related (599)

Related entries.

ID	severity	EPSS	exploitable	published
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regex is an implementation of regular expressions for the Rust language. The regex crate features built-in mitigations to prevent denial of service attacks caused by untrusted rege…
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An issue was discovered in GitLab CE/EE affecting all versions starting from 16.4 prior to 17.1.7, starting from 17.2 prior to 17.2.5, starting from 17.3 prior to 17.3.2 which cou…
CVE-2021-3749US	high7.5	8.52% (95th)	Exploit	2021-08-31
axios is vulnerable to Inefficient Regular Expression Complexity
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Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack’s media type parser to take much longer than expected, leading to a possible deni…

+594 more

references (11)

External citations — patches, advisories, analysis.

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