Is CVE-2026-79919 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-79919 being exploited in the wild.

How severe is CVE-2026-79919?

Medium severity, with a CVSS score of 6.3, published 21 September 2026.

Which products and versions are affected?

1Panel MaxKB before 2.10.6-lts.

Is there a fix for CVE-2026-79919?

A patch was published on 2026-09-03. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-79919 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-79919?

Check whether you run 1Panel MaxKB at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-79919: MaxKB sandbox bypass via dlopen and dlsym

CVE-2026-79919 · Severity: medium · CVSS 6.3 · Published 2026-09-21

MaxKB is an open-source AI assistant platform that executes untrusted code in a sandboxed environment. Prior to version 2.10.6-lts, an authenticated workspace member could bypass the sandbox's syscall restrictions by using ctypes and unhooked dlsym calls to directly invoke glibc functions, allowing them to read/write files, execute processes, or access networks as the sandbox user.

Technologies: 1Panel MaxKB. Vendors: 1Panel.

Quick answers

Is CVE-2026-79919 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-79919 being exploited in the wild.
How severe is CVE-2026-79919?: Medium severity, with a CVSS score of 6.3, published 21 September 2026.
Which products and versions are affected?: 1Panel MaxKB before 2.10.6-lts.
Is there a fix for CVE-2026-79919?: A patch was published on 2026-09-03. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-79919 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-79919?: Check whether you run 1Panel MaxKB at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exploits a flaw in the LD_PRELOAD sandbox's dlopen call-stack heuristic: an attacker can invoke ctypes.CDLL from an importlib.abc.MetaPathFinder callback so the dlopen inspection sees a Python import frame, then use unhooked dlsym with RTLD_NEXT to resolve glibc's real syscall function and bypass the sandbox blacklist. This requires authentication as a workspace member. The vulnerability is patched in version 2.10.6-lts.

Affected products

1Panel MaxKB before 2.10.6-lts

Timeline

2026-09-21: disclosed
2026-09-03: patched

References

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