CVE-2024-55565 is a medium-severity (CVSS 4.3) CWE-835 vulnerability in nanoid. A fix is available for nanoid — see the affected versions and patch details below.
Predictable results in nanoid generation when given non-integer values
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-55565.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2024-55565 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,333 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
nanoidnpmDescription
nanoid (aka Nano ID) before 5.0.9 mishandles non-integer values. 3.3.8 is also a fixed version.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | nanoid | ≥ 4.0.0&&< 5.0.9 | 5.0.9npm install nanoid@5.0.9 |
| 📦npm | nanoid | all versions | 3.3.8npm install nanoid@3.3.8 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nanoid, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nanoid to 5.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-55565 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-55565 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2024-55565. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Discovery 1 for RHEL 9 | discovery/discovery-server-rhel9:1.12.0-1 | RHSA-2025:1249 |
| multicluster engine for Kubernetes 2.6 for RHEL 8 | multicluster-engine/assisted-image-service-rhel8:v2.6.5-2 | RHSA-2025:0778 |
| multicluster engine for Kubernetes 2.7 for RHEL 8 | multicluster-engine/assisted-service-8-rhel8:v2.7.3-7 | RHSA-2025:0723 |
| Red Hat Advanced Cluster Management for Kubernetes 2.11 for RHEL 9 | rhacm2/acm-cluster-permission-rhel9:v2.11.5-2 | RHSA-2025:0785 |
| Red Hat Advanced Cluster Management for Kubernetes 2.12 for RHEL 9 | rhacm2/acm-cli-rhel9:v2.12.2-7 | RHSA-2025:0851 |
| Red Hat Ansible Automation Platform 2.5 for RHEL 8 | automation-gateway-0:2.5.20250115-1.el8ap | RHSA-2025:0340 |
| Red Hat Ceph Storage 7.1 | ceph-2:18.2.1-381.el8cp | RHSA-2026:2769 |
| Red Hat Developer Hub 1.3 on RHEL 9 | rhdh-hub-container-1.3-138 | RHBA-2025:0610 |
Frequently Asked Questions
Is CVE-2024-55565 in your dependencies?
O3 Security finds CVE-2024-55565 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.