CVE-2026-88755CWE-200CWE-284CWE-78CWE-863broken-access-controlcommand-injectioninformation-disclosure

CVE-2026-88755

High · published October 16, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
10.7
In the wild
Unconfirmed
What it is

Z.ai ZCode v3.11.2.6792 was discovered to automatically establish connections with MCP servers declared inside a repository's workspace configuration, possibly allowing attackers to execute arbitrary code via opening a crafted repository.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00210 · 10.7th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-284 · Improper Access Control; CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'); CWE-863 · Incorrect Authorization
Published
2026-10-16T19:17Z
References (4)
http://zai.com · [email protected]http://zcode.com · [email protected]https://gist.github.com/lkloliver/aac8dcf8a53fc4b3c1b0a5dfbf36ef68 · [email protected]https://github.com/lkloliver/poc/tree/main/CVE-2026-88755 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 16 OCT 00:00Z
    Z.ai ZCode v3.11.2.6792 was discovered to automatically establish connections with MCP servers declared inside a repository's workspace configuration, possibly…
    cvelistv5
  • 16 OCT 00:00Z
    Z.ai ZCode v3.11.2.6792 was discovered to automatically establish connections with MCP servers declared inside a repository's workspace configuration, possibly…
    cvelistv5