Linux Distros Unpatched Vulnerability : CVE-2026-1527

medium Nessus Plugin ID 302060

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\r\n) to: * Inject arbitrary HTTP headers * Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch) The vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters: // lib/dispatcher/client-h1.js:1121 if (upgrade) { header += `connection:
upgrade\r\nupgrade: ${upgrade}\r\n` } (CVE-2026-1527)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: Medium

ID: 302060

File Name: unpatched_CVE_2026_1527.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/13/2026

Updated: 3/13/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-1527

CVSS v3

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 4.2

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:node-undici, p-cpe:/a:debian:debian_linux:node-undici, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:nodejs-devel, p-cpe:/a:redhat:enterprise_linux:nodejs24-full-i18n, p-cpe:/a:centos:centos:nodejs24, p-cpe:/a:redhat:enterprise_linux:nodejs24, p-cpe:/a:redhat:enterprise_linux:nodejs-full-i18n, p-cpe:/a:redhat:enterprise_linux:nodejs22, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:nodejs-packaging-bundler, p-cpe:/a:redhat:enterprise_linux:nodejs24-devel, p-cpe:/a:centos:centos:nodejs, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:nodejs-full-i18n, p-cpe:/a:centos:centos:v8-13.6-devel, p-cpe:/a:centos:centos:npm, p-cpe:/a:centos:centos:nodejs-npm, p-cpe:/a:centos:centos:v8-12.4-devel, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:nodejs-packaging, p-cpe:/a:redhat:enterprise_linux:v8-13.6-devel, p-cpe:/a:centos:centos:nodejs-packaging-bundler, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:nodejs24-npm, p-cpe:/a:redhat:enterprise_linux:nodejs24-docs, p-cpe:/a:redhat:enterprise_linux:nodejs-npm, p-cpe:/a:redhat:enterprise_linux:v8-12.4-devel, p-cpe:/a:centos:centos:nodejs-packaging, p-cpe:/a:centos:centos:nodejs24-full-i18n, p-cpe:/a:redhat:enterprise_linux:nodejs-nodemon, p-cpe:/a:centos:centos:nodejs24-npm, p-cpe:/a:redhat:enterprise_linux:nodejs-docs, p-cpe:/a:centos:centos:nodejs-nodemon, p-cpe:/a:redhat:enterprise_linux:nodejs, p-cpe:/a:redhat:enterprise_linux:nodejs-libs, p-cpe:/a:redhat:enterprise_linux:nodejs24-libs, p-cpe:/a:centos:centos:nodejs22, p-cpe:/a:redhat:enterprise_linux:npm, p-cpe:/a:centos:centos:nodejs24-docs, p-cpe:/a:centos:centos:nodejs24-libs, p-cpe:/a:redhat:enterprise_linux:nodejs-devel, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:nodejs-docs, p-cpe:/a:centos:centos:nodejs-libs, p-cpe:/a:centos:centos:nodejs24-devel

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-1527

Detections

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