Updated: 2026-02-27 03:29:34.379662
Description:
A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with chunked encoding, leading to resource exhaustion and denial of service (DoS). The server reads an unbounded number of bytes from a single connection, exploiting the lack of limitations on chunk extension bytes. The issue can cause CPU and network bandwidth exhaustion, bypassing standard safeguards like timeouts and body size limits.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | nodejs | 16.20.2 | 7.5 | HIGH | Released | CLSA-2025:1754412086 | 2025-08-06 03:12:31 | |
| TuxCare 9.6 ESU | nodejs | 16.20.2 | 7.5 | HIGH | Already Fixed | 2026-01-30 14:49:45 |