GHSA-qwjm-9c66-w4q4

Suggest an improvement
Source
https://github.com/advisories/GHSA-qwjm-9c66-w4q4
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-qwjm-9c66-w4q4
Aliases
Published
2026-06-18T18:35:22Z
Modified
2026-09-10T03:50:50Z
Severity
  • 6.7 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
[Eclipse Theia] Data Exfiltration via Markdown Image Rendering in AI Chat
Details

In Eclipse Theia versions prior to 1.71.0, the AI chat rendered Markdown image tags from AI responses, triggering HTTP requests to arbitrary external URLs without restriction. Combined with prompt injection in a malicious workspace, an attacker could induce the AI agent to construct image URLs encoding sensitive information from the workspace or conversation context, exfiltrating it to attacker-controlled servers. The workspace trust enforcement introduced in v1.71.0 mitigates the documented attack chain by disabling AI features in untrusted workspaces.

Database specific
{
    "cwe_ids":  [
        "CWE-201"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-19T19:19:22Z",
    "nvd_published_at":  "2026-06-18T16:16:52Z",
    "severity":  "MODERATE"
}
References

Affected packages

npm
@theia/ai-chat-ui

Package

Name
@theia/ai-chat-ui
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-chat-ui

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-chat

Package

Name
@theia/ai-chat
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-chat

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-claude-code

Package

Name
@theia/ai-claude-code
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-claude-code

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-code-completion

Package

Name
@theia/ai-code-completion
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-code-completion

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-core

Package

Name
@theia/ai-core
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-core

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-editor

Package

Name
@theia/ai-editor
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-editor

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"
@theia/ai-ide

Package

Name
@theia/ai-ide
View open source insights on deps.dev
Purl
pkg:npm/%40theia/ai-ide

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.71.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-qwjm-9c66-w4q4/GHSA-qwjm-9c66-w4q4.json"