CVE-2026-25805

Zed does not show Parameter Values for MCP Tool Calls. Users cannot detect tool poisoning.

Published Feb 10, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
Zed is a multiplayer code editor. Prior to 0.219.4, Zed does not show with which parameters a tool is being invoked, when asking for allowance. Further it does not show after the tool was being invoked, which parameters were used. Thus, maybe unwanted or even malicious values could be used without the user having a chance to notice it. Patched in Zed Editor 0.219.4 which includes expandable tool call details.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Zed
Zed zed
CPEs cpe:2.3:a:zed:zed:*:*:*:*:*:*:*:*
Vendors & Products Zed
Zed zed
Type Values Removed Values Added
First Time appeared Zed-industries
Zed-industries zed
Vendors & Products Zed-industries
Zed-industries zed
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Zed is a multiplayer code editor. Prior to 0.219.4, Zed does not show with which parameters a tool is being invoked, when asking for allowance. Further it does not show after the tool was being invoked, which parameters were used. Thus, maybe unwanted or even malicious values could be used without the user having a chance to notice it. Patched in Zed Editor 0.219.4 which includes expandable tool call details.
Title Zed does not show Parameter Values for MCP Tool Calls. Users cannot detect tool poisoning.
Weaknesses CWE-356
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 10, 2026, 7:20 PM
Reserved
Feb 5, 2026, 7:58 PM
Status
Analyzed
Published
Feb 10, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:25 AM