8.8

CVE-2026-44691: eclipse foundation eclipse theia

CVSS: 8.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-44691GHSA-g9jw-92q7-g7fj
Published 18-06-2026Last modified 19-06-2026
Open JSON

Vulnerability summary

CVE-2026-44691 is a high (CVSS 8.8) vulnerability in eclipse foundation eclipse theia. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-06-2026
    PublishedVulnerability first disclosed.
  2. 19-06-2026
    Last modifiedVulnerability information updated.

Description

In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g. .theia/tasks.json, .vscode/tasks.json) could be executed without requiring workspace trust. An attacker could craft a malicious repository that, when cloned and opened in Theia, leads to execution of arbitrary commands with the user's privileges. In combination with AI chat features and a workspace .theia/settings.json that disabled tool confirmation, this could be triggered automatically by sending a message in the AI chat.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

@theia3 products
  • debug< 1.69.0
  • task< 1.69.0
  • workspace< 1.69.0
Eclipse1 product
Eclipse foundation1 product
Ubuntu1 product
  • eclipseAll versions (No fix recorded)

4 vendors · 6 products

References

8 links