Detections
Analytics
SCA: security update for mercurius (GHSA-m4h2-mjfm-mp55)
medium Tenable Self-Hosted Container Security Plugin ID 438463
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Mercurius is a GraphQL adapter for Fastify. Prior to version 16.8.0, Mercurius fails to enforce the
configured queryDepth limit on GraphQL subscription queries received over WebSocket connections. The depth
check is correctly applied to HTTP queries and mutations, but subscription queries are parsed and executed
without invoking the depth validation. This allows a remote client to submit arbitrarily deeply nested
subscription queries over WebSocket, bypassing the intended depth restriction. On schemas with recursive
types, this can lead to denial of service through exponential data resolution on each subscription event.
This issue has been patched in version 16.8.0. (CVE-2026-30241)
Solution
Update the mercurius library and its related packages to version 16.8.0 or later.See Also
Plugin Details
Severity: Medium
ID: 438463
Version: Revision 1.9
Type: Local
Family: SCA Checks
Published: 3/7/2026
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3.5
Percentile: 52.04
Vendor
Vendor Severity: Low
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 6.3
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:C
CVSS Score Source: CVE-2026-30241
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 2.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 3/6/2026
Vulnerability Publication Date: 3/6/2026
Reference Information
CVE: CVE-2026-30241
cwe: CWE-863