Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-1525
medium Nessus Plugin ID 302063
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.- Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names (e.g., Content-Length and content-length). This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire. Who is impacted: * Applications using undici.request(), undici.Client, or similar low-level APIs with headers passed as flat arrays * Applications that accept user-controlled header names without case-normalization Potential consequences: * Denial of Service:
Strict HTTP parsers (proxies, servers) will reject requests with duplicate Content-Length headers (400 Bad Request) * HTTP Request Smuggling: In deployments where an intermediary and backend interpret duplicate headers inconsistently (e.g., one uses the first value, the other uses the last), this can enable request smuggling attacks leading to ACL bypass, cache poisoning, or credential hijacking (CVE-2026-1525)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-1525
Plugin Details
Severity: Medium
ID: 302063
File Name: unpatched_CVE_2026_1525.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: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2026-1525
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
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-2026-1525