CVE-2026-4588Network attack vector

Unauthenticated user enumeration via default cryptographic key

Published Mar 23, 2026 · Updated Mar 23, 2026

Improper access control in KodCloud KodBox 1.64 allows remote attackers to read group and user details through shareSafeGroup. When the site API key is empty, shareSafeGroup passes it to Mcrypt, which substitutes a source-known default key and accepts attacker-generated sk tokens. The site-level external-sharing API must be enabled with an empty key; successful requests enumerate groups and users, including administrators.

CVSS severity3.7
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in KodCloud KodBox 1.64 allows remote attackers to read group and user details through shareSafeGroup. When the site API key is empty, shareSafeGroup passes it to Mcrypt, which substitutes a source-known default key and accepts attacker-generated sk tokens. The site-level external-sharing API must be enabled with an empty key; successful requests enumerate groups and users, including administrators.

The record

CVE
CVE-2026-4588
Published
Mar 23, 2026
Updated
Mar 23, 2026
Vendor
kalcaddle
Product
KodBox
Classifications
CWE-320, CWE-321, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.64

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

kalcaddle · KodBoxversion=1.64

Published CVSS scores

2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A: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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-320Key Management Errors
CWE-321Use of Hard-coded Cryptographic Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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