MaxKB RCE vulnerability in function library

published 2025-01-02 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-52990

cvss: 6.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

MaxKB, which stands for Max Knowledge Base, is an open source knowledge base question-answering system based on a large language model and retrieval-augmented generation (RAG). Prior to version 1.9.0, a remote command execution vulnerability exists in the module of function library. The vulnerability allow privileged‌ users to execute OS command in custom scripts. The vulnerability has been fixed in v1.9.0.

Patch / fix

fixed in 1

maxkb maxkb 1.9.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 22 mo ago (2025-01-02)

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-76w2-2g72-cg85 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1Panel-dev MaxKB

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

github.com /1Panel-dev/MaxKB/security/advisories/GHSA-76w2-2g72-cg85
exploit, vendor-advisory

Sources

CVE List CVE-2024-56137
NVD CVE-2024-56137

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary