Detections
Analytics

SCA: security update for next (GHSA-jcc7-9wpm-mj36)

low Tenable Self-Hosted Container Security Plugin ID 438900

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and
 prior to version 16.1.7, in `next dev`, cross-site protection for internal websocket endpoints could treat
 `Origin: null` as a bypass case even if `allowedDevOrigins` is configured, allowing privacy-
 sensitive/opaque contexts (for example sandboxed documents) to connect unexpectedly. If a dev server is
 reachable from attacker-controlled content, an attacker may be able to connect to the HMR websocket
 channel and interact with dev websocket traffic. This affects development mode only. Apps without a
 configured `allowedDevOrigins` still allow connections from any origin. The issue is fixed in version
 16.1.7 by validating `Origin: null` through the same cross-site origin-allowance checks used for other
 origins. If upgrading is not immediately possible, do not expose `next dev` to untrusted networks and/or
 block websocket upgrades to `/_next/webpack-hmr` when `Origin` is `null` at the proxy. (CVE-2026-27977)

Solution

Update the next library and its related packages to version 16.1.7 or later.

See Also

https://github.com/advisories/GHSA-jcc7-9wpm-mj36

Plugin Details

Severity: Low

ID: 438900

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/17/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-27977

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.3

Threat Score: 0.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/17/2026

Reference Information

CVE: CVE-2026-27977