CVE-2021-34435 describes a critical Remote Code Execution (RCE) vulnerability in Eclipse Theia versions 0.3.9 to 1.8.1, specifically within its "mini-browser" extension. This flaw allows an attacker to execute arbitrary code if a user previews a specially crafted, malicious HTML file within the IDE. With a CVSS score of 8.8 (HIGH), the vulnerability has a network attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability, requiring user interaction to be exploited. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.3.9, <= 1.8.1CPE matchmatch criteria | cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.