CVE-2026-79919Public exploitNetwork attack vectorHinoki check available

Authenticated sandbox escape via dlopen heuristic bypass

Published Sep 21, 2026 · Updated Sep 21, 2026

Sandbox escape in the MaxKB function-library executor before 2.10.6-lts allows remote authenticated users to execute code as the sandbox user. An importlib meta-path callback places a Python import frame on the stack so the dlopen gate accepts ctypes.CDLL, while unhooked dlsym resolves glibc's real syscall. Any authenticated workspace member with default tool-debug permission can then read or write container files, start processes, or reach networks with sandbox-user privileges.

CVSS severity6.3
Medium
EPSS probability0.39%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Sandbox escape in the MaxKB function-library executor before 2.10.6-lts allows remote authenticated users to execute code as the sandbox user. An importlib meta-path callback places a Python import frame on the stack so the dlopen gate accepts ctypes.CDLL, while unhooked dlsym resolves glibc's real syscall. Any authenticated workspace member with default tool-debug permission can then read or write container files, start processes, or reach networks with sandbox-user privileges.

The record

CVE
CVE-2026-79919
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
KubeOperator
Product
MaxKB
Classifications
CWE-693, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.10.6-lts

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

KubeOperator · MaxKBversion=< 2.10.6-lts

Published CVSS scores

6.3GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1059.006Command and Scripting Interpreter: Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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