CVE-2026-45413

Password recovery via unsalted MD5 storage

Published May 26, 2026 · Updated May 26, 2026

Weak password hashing in FIT2CLOUD MaxKB before 2.9.1 allows local users to recover user passwords from stolen database hashes. The password_encrypt function in apps/common/utils/common.py passes each plaintext password directly to hashlib.md5 and stores the deterministic hexadecimal digest without a salt. Exploitation requires access to the password database or a backup; recovered credentials permit account access only with the privileges assigned to the cracked account.

CVSS severity6.9
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Weak password hashing in FIT2CLOUD MaxKB before 2.9.1 allows local users to recover user passwords from stolen database hashes. The password_encrypt function in apps/common/utils/common.py passes each plaintext password directly to hashlib.md5 and stores the deterministic hexadecimal digest without a salt. Exploitation requires access to the password database or a backup; recovered credentials permit account access only with the privileges assigned to the cracked account.

The record

CVE
CVE-2026-45413
Published
May 26, 2026
Updated
May 26, 2026
Vendor
KubeOperator
Product
MaxKB
Classifications
CWE-328, T1110.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 2.9.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

KubeOperator · MaxKBversion=< 2.9.1

Published CVSS scores

6.9GitHub, Inc. CNACVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.3MaxKB GitHub Security AdvisoryCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-328Use of Weak Hash
T1110.002Password Cracking

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo