CVE-2026-46580

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-46580
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46580.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46580
Aliases
Downstream
Published
2026-06-18T14:26:59.389Z
Modified
2026-07-08T08:13:37.957915822Z
Severity
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

In Eclipse Theia versions prior to 1.71.0, files matching the pattern .prompts/*.prompttemplate in a workspace were automatically loaded and could override or extend the AI agent's system prompts. An attacker could craft a malicious repository containing prompt template files that, when the workspace was opened in Theia, replaced the AI's system instructions with attacker-controlled content (indirect prompt injection). Combined with other AI chat features available in untrusted workspaces, this enabled attack chains leading to data exfiltration via Markdown image rendering or arbitrary command execution via task definitions.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46580.json",
    "cna_assigner": "eclipse",
    "cwe_ids": [
        "CWE-1427",
        "CWE-829"
    ]
}
References

Affected packages

Git / github.com/eclipse-theia/theia

Affected ranges

Type
GIT
Repo
https://github.com/eclipse-theia/theia
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5596c3c7d720b7e287e2b87a48403b0492a3fdb6
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.71.0"
        }
    ]
}

Affected versions

0.*
0.0.1-alpha.1
0.0.1-alpha.2
1.*
1.13.0
v0.*
v0.1.0
v0.1.1
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.3.0
v0.3.1
v0.3.10
v0.3.11
v0.3.12
v0.3.13
v0.3.14
v0.3.15
v0.3.16
v0.3.17
v0.3.18
v0.3.19
v0.3.2
v0.3.3
v0.3.4
v0.3.8
v0.3.9
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.2.0
v1.20.0
v1.21.0
v1.22.0
v1.22.1
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.40.0
v1.41.0
v1.42.0
v1.43.0
v1.44.0
v1.45.0
v1.46.0
v1.47.0
v1.48.0
v1.49.0
v1.5.0
v1.50.0
v1.52.0
v1.53.0
v1.54.0
v1.55.0
v1.56.0
v1.57.0
v1.58.0
v1.59.0
v1.6.0
v1.60.0
v1.61.0
v1.62.0
v1.63.0
v1.64.0
v1.65.0
v1.66.0
v1.67.0
v1.68.0
v1.69.0
v1.7.0
v1.70.0
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46580.json"