CVE-2026-79918CWE-693

CVE-2026-79918

Medium · published September 22, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
28.9
In the wild
Unconfirmed
What it is

MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, the ToolExecutor LD_PRELOAD sandbox hooks execve, execvpe, and execveat to prevent subprocess creation but does not hook fexecve. An authenticated attacker able to execute tool code can call fexecve to start a process outside the sandbox's intended subprocess policy. This issue is fixed in version 2.10.6-lts.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00362 · 28.9th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2026-09-22T01:17Z
References (3)
https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6 · [email protected]https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts · [email protected]https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh · [email protected]
EPSS history
Timeline
  • 23 SEP 03:48Z
    EPSS moved — → 0%
    epss
  • 21 SEP 20:47Z
    MaxKB: Sandbox escape via unhooked fexecve
    cvelistv5