Detections
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Echo: brace-expansion: security update to 1.1.21node-brace-expansion: security update to 2.0.1+~1.1.0-2+e4

medium Tenable Self-Hosted Container Security Plugin ID 461308

Description

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

 - The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to
 1.1.21, 2.1.7, 3.0.9, and 5.0.12, the expand function handles untrusted {a},b}-shaped patterns with many
 trailing closing braces by restarting its scan once for each trailing closing brace. The successive full-
 input rescans with linear working-string growth cause quadratic CPU time and memory pressure that can
 block the Node.js event loop. The process eventually recovers, making the impact a recoverable CPU denial
 of service. This issue is fixed in versions 1.1.21, 2.1.7, 3.0.9, and 5.0.12. (CVE-2026-102277)

Solution

Update the brace-expansion library and its related packages to version 1.1.21 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-102277

Plugin Details

Severity: Medium

ID: 461308

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-102277

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2026

Vulnerability Publication Date: 9/28/2026

Reference Information

CVE: CVE-2026-102277