CVE-2026-25805 json
Zed does not show Parameter Values for MCP Tool Calls. Users cannot detect tool poisoning.
published 2026-02-10 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-6755
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- zed zed 0.219.4
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/zed-industries/zed/security/advisories/GHSA-f2g4-87h6-4pxq referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
- zed-industries zed
Classification
- Weakness
-
- CWE-356 Missing User Interaction for Potentially Unsafe Action
References
-
github.com
/zed-industries/zed/security/advisories/GHSA-f2g4-87h6-4pxq
exploit, vendor-advisory
Sources
- CVE List CVE-2026-25805
- NVD CVE-2026-25805
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