Detections
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Echo: source-map-js: security update to 1.2.2

high Tenable Self-Hosted Container Security Plugin ID 473829

Description

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

 - source-map-js through 1.2.1 fails to validate the per-section offset line value in indexed source maps,
 allowing attackers to specify arbitrary numeric values. Attackers can supply extremely large offset line
 values that cause synchronous event loop blocking for extended periods, preventing the service from
 handling other requests. (CVE-2026-93749)

Solution

Update the source-map-js library and its related packages to version 1.2.2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-93749

Plugin Details

Severity: High

ID: 473829

Version: Revision 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.68

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-93749

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 9/18/2026

Reference Information

CVE: CVE-2026-93749