Detections
Analytics

SCA: security update for js-yaml (GHSA-h67p-54hq-rp68)

medium Tenable Self-Hosted Container Security Plugin ID 443206

Description

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

 - js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can
 trigger algorithmic CPU exhaustion in js-yaml merge-key processing (<<) by repeating the same alias many
 times in a merge sequence. This causes quadratic parse-time behavior relative to input size and can block
 a Node.js worker/event loop for seconds with a relatively small payload (tens of KB), resulting in denial
 of service. The issue is in merge handling inside lib/loader.js. This vulnerability is fixed in 4.2.0 and
 3.15.0. (CVE-2026-53550)

Solution

Update the js-yaml library and its related packages to version 3.15.0 or later.

See Also

https://github.com/advisories/GHSA-h67p-54hq-rp68

Plugin Details

Severity: Medium

ID: 443206

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/15/2026

Updated: 6/29/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

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-2026-53550

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-53550

cwe: CWE-407