MaxKB: Unsalted MD5 Password Hashing

published 2026-05-26 5 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-31984

cvss: 6.9; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits: 0; none known

MaxKB is an open-source AI assistant for enterprise. Prior to 2.9.1, user passwords are stored using unsalted MD5 hashes, making them trivially crackable via rainbow tables or GPU-accelerated brute force (hashcat). This vulnerability is fixed in 2.9.1.

Patch / fix

fixed in 1

maxkb maxkb 2.9.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-27)

Exploit prediction

0.08% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA	4.0	6.9	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

1Panel-dev MaxKB

Classification

Weakness

CWE-328 Use of Weak Hash

References

github.com /1Panel-dev/MaxKB/security/advisories/GHSA-2m4c-mcq5-q8xq

Sources

CVE List CVE-2026-45413
NVD CVE-2026-45413

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