CVE-2026-48937
HIGHCVSS 7.5/10EPSS 0.53%
Last modified
CVE-2026-48937 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw in Node.js HTTP/2 server API can cause servers to keep accepting data even after sending a `GOAWAY` frame. This vulnerability affects two supported release lines: **Node.js 22** and **Node.js 24**.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
A flaw in Node.js HTTP/2 server API can cause servers to keep accepting data even after sending a `GOAWAY` frame. This vulnerability affects two supported release lines: **Node.js 22** and **Node.js 24**.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Node.Js | >= 22.0, < 22.23.0 |
| Nodejs | Node.Js | >= 24.0.0, < 24.17.0 |
References
- https://hackerone.com/reports/3658225Issue Tracking, Third Party Advisory
- https://nodejs.org/en/blog/vulnerability/june-2026-security-releasesPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-48937?
A flaw in Node.js HTTP/2 server API can cause servers to keep accepting data even after sending a `GOAWAY` frame. This vulnerability affects two supported release lines: **Node.js 22** and **Node.js 24**.
How severe is CVE-2026-48937?
CVE-2026-48937 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2026-48937?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-48937?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST