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SCA: security update for deepmerge-ts (GHSA-ggr8-5vv4-36mx)

high Tenable Self-Hosted Container Security Plugin ID 446020

Description

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

 - deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior
 to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited
 objects or object pairs when recursively merging records. When two input values contain self-references at
 the same property path, the merge logic repeatedly revisits the same pair until Node.js raises RangeError:
 Maximum call stack size exceeded. Applications that merge attacker-controlled recursive object graphs can
 synchronously crash the affected process or cause repeated worker restarts. Plain JSON input alone cannot
 create the recursive graph required to trigger the issue. This issue is fixed in version 8.0.0.
 (CVE-2026-40345)

Solution

Update the deepmerge-ts library and its related packages to version 8.0.0 or later.

See Also

https://github.com/advisories/GHSA-ggr8-5vv4-36mx

Plugin Details

Severity: High

ID: 446020

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/17/2026

Updated: 8/21/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-40345

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 8/17/2026

Reference Information

CVE: CVE-2026-40345

cwe: CWE-674