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Linux Distros Unpatched Vulnerability : CVE-2026-1536

medium Nessus Plugin ID 297046

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.

 - A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction. (CVE-2026-1536)

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-2026-1536

https://security-tracker.debian.org/tracker/CVE-2026-1536

Plugin Details

Severity: Medium

ID: 297046

File Name: unpatched_CVE_2026_1536.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 1/28/2026

Updated: 1/28/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:libsoup, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:libsoup3-doc, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:debian:debian_linux:libsoup3, p-cpe:/a:centos:centos:libsoup3-devel, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:libsoup-devel, p-cpe:/a:redhat:enterprise_linux:libsoup, 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:libsoup3, p-cpe:/a:redhat:enterprise_linux:libsoup3-devel, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:libsoup3-doc, p-cpe:/a:redhat:enterprise_linux:libsoup-devel, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:libsoup3, p-cpe:/a:debian:debian_linux:libsoup2.4

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

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2026-1536