Detections
Analytics

SCA: security update for seroval (GHSA-mv8w-475r-vwqw)

critical Tenable Self-Hosted Container Security Plugin ID 445238

Description

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

 - Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify
 capabilities. Prior to 1.5.3, seroval.fromJSON() allows attacker-controlled JSON Promise control nodes to
 operate on values from the general deserialization reference table without verifying genuine internal
 Promise resolver records, causing deserialization side effects with plugins enabled and potentially
 unintended server-side invocation or remote code execution when downstream frameworks register callable
 wrappers. This issue is fixed in version 1.5.3. (CVE-2026-59940)

Solution

Update the seroval library and its related packages to version 1.5.3 or later.

See Also

https://github.com/advisories/GHSA-mv8w-475r-vwqw

Plugin Details

Severity: Critical

ID: 445238

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/24/2026

Updated: 8/19/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-59940

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/24/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-59940