MEDIUMpublic-safe

CVE-2026-14574

NVD: In Eclipse Theia versions 0.7.0 and up until including 1.73.1, the PreferenceUtils.merge function in @theia/core recursively merges preference values without rejecting prototype-related keys (__proto__, constructor, prototype). NVD: Because this function is invoked by PreferenceServiceImpl.doResolve for every preference resolution across scopes (default, user, workspace, folder), a crafted preference value in a workspace settings file (.theia/settings.json or .vscode/settings.json) can... OSV: In Eclipse Theia versions 0.7.0 and up until including 1.73.1, the PreferenceUtils.merge function in @theia/core recursively merges preference values without rejecting prototype-related keys (__proto__, constructor, prototype).

CVSS
5.7 Severity
MEDIUM EPSS
0.0028 (20) KEV
-

Source-published summary

Possible impact

This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.

Affected context

vendor/product: eclipse / theia

Remediation / advisory

Remediation reference present; patch status requires confirmation in the linked advisory.

Why it matters

This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; CVSS 5.7 (MEDIUM); EPSS percentile 20; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV, Vendor Advisory.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

明示タグなし

Urgency reasons

affected product presentvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV / Vendor Advisory description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.