Eclipse Theia - Unauthenticated Path Traversal

Eclipse Theia's plugin-ext backend exposes the hostedPlugin endpoint without constraining the resolved path to the plugin directory. An unauthenticated request using encoded traversal sequences can therefore read files accessible to the backend process. The built-in vscodebat plugin identifier...

gha-lab-b5c1313658

Automated research artifact — not the upstream project. This repository is a disposable lab built by an automated harness for a master's thesis at Université Laval on reproducing published GitHub Actions workflow vulnerabilities. It is a verbatim snapshot of eclipse-theia/theia-website at commit...

Malicious code in che-theia-activity-tracker (npm)

The package che-theia-activity-tracker was found to contain malicious code. --- Credit: OpenSSF source...

Malicious code in che-theia-ssh-extension (npm)

The package che-theia-ssh-extension was found to contain malicious code. --- Credit: OpenSSF source...

Directory Traversal

Overview @theia/ai-ide is an AI IDE Agents Extension Affected versions of this package are vulnerable to Directory Traversal through the AI Agent Mode file-change tools in the workspace path resolution code. An attacker can write or delete files outside the workspace by supplying a crafted relati...

CVE-2026-82217

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

CVE-2026-82217

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

EUVD-2026-68519

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

CVE-2026-82217

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

CVE-2026-82217

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

CVE-2026-82217

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

CVE-2026-82217

Eclipse Theia versions 1.73.0 through 1.74.9 are affected by a path traversal vulnerability in the AI "Agent Mode" file-change tools (writeFileContent , suggestFileContent , and related helpers). The root cause is the absence of a workspace-containment check on model-supplied file paths, allowing...

PT-2026-83818

Name of the Vulnerable Software and Affected Versions Eclipse Theia versions 1.73.0 through 1.74.x Description In AI Agent Mode, file-change tools resolve model-supplied file paths without verifying if they are contained within the workspace. This allows a crafted relative path, an absolute path,...

CVE-2026-82217: Improper Limitation of a Pathname to a Restricted Directory

In Eclipse Theia versions 1.73.0 up to but not including 1.75.0, the AI "Agent Mode" file-change tools writeFileContent, suggestFileContent, and the replacement and state helpers resolved a model-supplied file path without a workspace-containment check. A crafted relative path such as ../.bashrc,...

Inclusion of Functionality from Untrusted Control Sphere

Overview @theia/plugin-ext is a Theia - Plugin Extension Affected versions of this package are vulnerable to Inclusion of Functionality from Untrusted Control Sphere due to missing workspace-trust enforcement in the plugin and extension loading path. An attacker can execute commands with the user...

Inclusion of Functionality from Untrusted Control Sphere

Overview @theia/plugin-ext-vscode is a Theia - Plugin Extension for VsCode Affected versions of this package are vulnerable to Inclusion of Functionality from Untrusted Control Sphere due to missing workspace-trust enforcement in the plugin and extension loading path. An attacker can execute...

@popcornsar/che-theia-plugin-ext (7.4.0), @popcornsar/theia-dashboard-extension (7.4.0-v1) +16 more potentially affected by CVE-2026-19884 via @theia/plugin-ext (>=1.0.0, <=1.70.0-next.81)

@theia/plugin-ext NPM version =1.0.0, =1.1.0-next.14531578, =1.46.0-next.72, =1.1.0-next.14531578, =1.1.0-next.14531578, =1.1.0-next.14531578, =1.59.0, =0.0.17, =0.0.6, =0.0.19, =0.0.6, =0.0.21 and more Source cves: CVE-2026-19884 Source advisory: SNYK:JS-THEIAPLUGINEXT-18855352...

@theia/vsx-registry (>=1.1.0-next.14531578, <=1.70.0-next.81), openvsx-server (>=1.59.0, <=1.59.1) potentially affected by CVE-2026-19884 via @theia/plugin-ext-vscode (>=1.1.0-next.14531578, <=1.70.0-next.81)

@theia/plugin-ext-vscode NPM version =1.1.0-next.14531578, =1.1.0-next.14531578, =1.59.0, =1.59.1 Source cves: CVE-2026-19884 Source advisory: SNYK:JS-THEIAPLUGINEXTVSCODE-18855353...

CVE-2026-19884

In Eclipse Theia versions up to and including 1.69.0, opening a folder starts source control integration without requiring the user to trust the folder first. This affects applications built on Theia that include the git integration, such as the Theia IDE. Both Theia's own @theia/git extension an...

CVE-2026-19884

In Eclipse Theia versions up to and including 1.69.0, opening a folder starts source control integration without requiring the user to trust the folder first. This affects applications built on Theia that include the git integration, such as the Theia IDE. Both Theia's own @theia/git extension an...