Detections
Analytics

SCA: security update for @theia/mini-browser (GHSA-v9w2-v7j9-rjpr)

high Tenable Cloud Security Plugin ID 419243

Description

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

 - In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an
 iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an
 RCE. This exploit only happens if a user previews a malicious file.. (CVE-2021-34435)

See Also

https://github.com/advisories/GHSA-v9w2-v7j9-rjpr

Plugin Details

Severity: High

ID: 419243

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-34435

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/2/2021

Vulnerability Publication Date: 9/1/2021

Reference Information

CVE: CVE-2021-34435