CVE-2026-70557Public exploitNetwork attack vector

Authenticated secret disclosure via unrestricted field resolution

Published Aug 6, 2026 · Updated Aug 6, 2026

Authorization bypass in Diboot diboot-core 3.9.0 and earlier allows remote authenticated users to read arbitrary database fields. The POST /common/load-related-data endpoint maps caller-supplied label and ext names to any entity's @TableField columns, while relatedDataSecurityCheck() returns true without an entity or field allowlist. A zero-role account is sufficient to disclose password hashes and salts; administrative takeover requires successful offline cracking.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Diboot diboot-core 3.9.0 and earlier allows remote authenticated users to read arbitrary database fields. The POST /common/load-related-data endpoint maps caller-supplied label and ext names to any entity's @TableField columns, while relatedDataSecurityCheck() returns true without an entity or field allowlist. A zero-role account is sufficient to disclose password hashes and salts; administrative takeover requires successful offline cracking.

The record

CVE
CVE-2026-70557
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Diboot
Product
diboot-core
Classifications
CWE-639, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=0 <=3.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Diboot · diboot-coreversion=0 <=3.9.0

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1555Credentials from Password Stores

Public exploit references

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

Technologies

Your stack

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Your stack

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