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VulnerabilityPublished

CVE-2026-45413: 1Panel-dev MaxKB · Use of Weak Hash

Affects 1Panel-dev MaxKBSource CVE Database V5

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Not known to be exploited · CVSS 6.9 Medium : upgrade to 2.9.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.08% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.9.1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade MaxKB and 1panel-dev/MaxKB to 2.9.1.

Affected software

ProductAffectedFixed in
1Panel-devMaxKBAffected
  • <2.9.1
Fixed in
  • 2.9.1
GitHub1panel-dev/MaxKBpkg:github/1panel-dev/MaxKBOther threatsAffected
  • <2.9.1
Fixed in
  • 2.9.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade MaxKB to version 2.9.1 or later, where the password storage mechanism has been fixed to use a stronger hashing algorithm. Since the vendor advisory confirms the fix in 2.9.1, applying this update fully mitigates the vulnerability. No other mitigation steps are indicated.

Description

CVE-2026-45413 affects MaxKB versions prior to 2.9.1, where user passwords are stored using unsalted MD5 hashes. This weak hashing method makes password hashes trivially crackable using rainbow tables or GPU-accelerated brute force tools. The vulnerability is fixed in version 2.9.1. The CVSS 4.0 score is 6.9, indicating a medium severity risk primarily due to local attack vector and no required privileges or user interaction.

References

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