Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-29057

medium Nessus Plugin ID 302928

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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.

 - Next.js is a React framework for building full-stack web applications. Starting in version 9.5.0 and prior to versions 15.5.13 and 16.1.7, when Next.js rewrites proxy traffic to an external backend, a crafted `DELETE`/`OPTIONS` request using `Transfer-Encoding: chunked` could trigger request boundary disagreement between the proxy and backend. This could allow request smuggling through rewritten routes. An attacker could smuggle a second request to unintended backend routes (for example, internal/admin endpoints), bypassing assumptions that only the configured rewrite destination/path is reachable. This does not impact applications hosted on providers that handle rewrites at the CDN level, such as Vercel. The vulnerability originated in an upstream library vendored by Next.js. It is fixed in Next.js 15.5.13 and 16.1.7 by updating that dependency's behavior so `content-length: 0` is added only when both `content-length` and `transfer-encoding` are absent, and `transfer-encoding` is no longer removed in that code path. If upgrading is not immediately possible, block chunked `DELETE`/`OPTIONS` requests on rewritten routes at the edge/proxy, and/or enforce authentication/authorization on backend routes. (CVE-2026-29057)

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-2026-29057

Plugin Details

Severity: Medium

ID: 302928

File Name: unpatched_CVE_2026_29057.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 3/18/2026

Updated: 3/18/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.4

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

CVSS Score Source: CVE-2026-29057

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:L/I:L/A:N

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0-source-built-artifacts, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet7.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-7.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-7.0, p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-7.0, p-cpe:/a:redhat:enterprise_linux:dotnet-host

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: 3/17/2026

Reference Information

CVE: CVE-2026-29057