CVE-2026-44688: In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as p

Q: How do I fix CVE-2026-44688?

theia: upgrade to 1.71.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-44688 being exploited?

CVE-2026-44688 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-44688 affect?

CVE-2026-44688 affects theia. Severity is high (CVSS 8.8). In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as part of its prompt context without distinguishing them from system instructions. An attacker could craft a malicious repository wit

This month

HIGH 8.8UPGRADE

CVE-2026-44688 is a high-severity flaw (CVSS 8.8) affecting theia. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as part of its prompt context without distinguishing them from system instructions. An attacker could craft a malicious repository with adversarial directory or file names that, when analyzed by the AI agent, would cause the agent to follow attacker-controlled instructions (indirect prompt injection). Combined with other AI chat features avai

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-829
Published	2026-06-18
Last modified	2026-10-26

Publisher (CNA): Eclipse Foundation · Vendor: eclipse

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-18 16:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

eclipse theia UPGRADE

Affected: < 1.71.0

Fixed in: 1.71.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy theia || rpm -q theia || theia --version

2. UPGRADE to 1.71.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade theia

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade theia

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44688?

theia: upgrade to 1.71.0. Exact commands for each OS are on this page.

Is CVE-2026-44688 being exploited?

CVE-2026-44688 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44688 affect?

CVE-2026-44688 affects theia. Severity is high (CVSS 8.8). In Eclipse Theia versions prior to 1.71.0, the AI chat agent processed workspace file and directory names as part of its prompt context without distinguishing them from system instructions. An attacker could craft a malicious repository wit

How urgent is CVE-2026-44688?

Priority 42/100. High severity

Related CVEs

CVE-2026-46580 HIGH 8.8 UPGRADE In Eclipse Theia versions prior to 1.71.0, files matching the pattern .prompts/*.prompttemplate in a workspace
CVE-2026-44691 HIGH 8.8 UPGRADE In Eclipse Theia versions prior to 1.69.0, custom task definitions in workspace files (e.g
CVE-2026-22551 MEDIUM 6.5 UPGRADE In Eclipse Theia versions prior to 1.71.0, the AI chat rendered Markdown image tags from AI responses, trigger
CVE-2026-60009 HIGH 8.8 UPGRADE In Eclipse Theia versions up to and including 1.73.1, the `@theia/filesystem` backend binds `POST /file-upload
CVE-2026-61891 HIGH 7.5 UPGRADE In Eclipse Theia versions up to and including 1.73.1, the `@theia/filesystem` backend exposes HTTP file-downlo

References

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