Improper Neutralization of Input in Theia console

MEDIUM 6.1CVE-2021-28161 · GHSA-cwg9-c9cr-p5fq · Published 12/03/2021 · updated 17/06/2026

In short

CVE-2021-28161 is a MEDIUM (CVSS 6.1) vulnerability affecting theia (eclipse), @theia/console.
Chance of exploitation in the next 30 days (EPSS): 0.71%, higher than 53.5% of all vulnerabilities.
Fix: update to 1.8.1 or later.

Package	Affected versions	Patched versions
theia eclipse	`≤ 1.8.0`	No fix yet
@theia/console npm	`< 1.8.1`	`1.8.1`

In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.

NVD description

In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.

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Package

Affected versions

Patched versions

≤ 1.8.0

No fix yet

npm

< 1.8.1

1.8.1

Description

In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.

NVD description

In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.

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