Skip to main content
MEDIUM

CVE-2026-67214

CVSS v3

5.9

MEDIUM

EPSS Score

0.3 %

exploit probability, as of 2026-10-17

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for nanoid. Watch nanoid in CVE Watch Free account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nanoidnpmfrom 4.0.0 · fixed in 5.1.16

Vendor advisories

  • CVE-2026-67214 Red Hat Product Security83 products fixed · 26 known affected

    nanoid: nanoid: Denial of Service via negative size input in non-secure module functions

    rhmtc/openshift-migration-ui-rhel8 as a component of Migration Toolkit for Containers · workload-availability/node-healthcheck-rhel9-operator as a component of Node HealthCheck Operator · workload-availability/node-remediation-console-rhel8 as a component of Node HealthCheck Operator

  • RHSA-2026:83598 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: RHTAS 1.4.4 - Red Hat Trusted Artifact Signer Release

  • RHSA-2026:81110 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Quay

  • RHSA-2026:79088 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 release.

  • RHSA-2026:74511 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Quay 3.17.5

  • RHSA-2026:71113 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update

21 more advisories

Full record on NVD

Description

nanoid (Nano ID) before 3.3.16 and 5.1.16 contains an infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). When these functions are given a negative size, the loop counter is decremented from a negative value and never reaches its termination condition, spinning indefinitely and hanging the calling thread. An application that passes an unvalidated, attacker-controlled negative size to these functions is exposed to a denial-of-service condition.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-07-29
Last Modified
2026-07-30

Frequently asked questions

What is CVE-2026-67214?

nanoid (Nano ID) before 3.3.16 and 5.1.16 contains an infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). When these functions are given a negative size, the loop counter is decremented from a negative value and never reaches its termination condition, spinning indefinitely and hanging the calling thread. An application that passes an unvalidated, attacker-controlled negative size to these functions is exposed to a denial-of-service condition.

Is CVE-2026-67214 actively exploited?

Active exploitation of CVE-2026-67214 has not been confirmed. Its EPSS score was 0.3% on 2026-10-17, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-67214?

CVE-2026-67214 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Running nanoid? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · 50 free checks/month · Free API key

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database