7.1
HIGH CVSS 4.0
CVE-2026-70557
diboot-core Authenticated Arbitrary Field Read via loadRelatedData Discloses Password Hashes and Salts
Description

diboot-core's POST /common/load-related-data endpoint resolves caller-supplied field names to any @TableField column of any entity and returns those values for all rows, with no field or entity allowlist. The only guard, relatedDataSecurityCheck(), returns true unconditionally, so any authenticated user (including a zero-role account) can read @JsonIgnore-annotated secret fields such as IamAccount.authSecret and IamAccount.secretSalt for every account, or arbitrary secret fields of any other entity. Shiro's two-iteration MD5 with an 8-character salt is trivially crackable offline, so the disclosed admin password hashes convert to full administrative takeover. The endpoint is not example code; the official diboot-admin-ui frontend requires it, so deployments following the vendor's recommended integration expose it. The mechanism was renamed relatedData* to attachMore* on the development branch, but attachMoreSecurityCheck() also returns true unconditionally.

INFO

Published Date :

Aug. 6, 2026, 10:18 p.m.

Last Modified :

Oct. 24, 2026, 3:10 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-70557 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Diboot diboot-core
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM MITRE-CVE
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH [email protected]
Solution
Restrict access to sensitive data by implementing proper authorization and input validation.
  • Implement strict field and entity allowlisting.
  • Enforce granular access control checks.
  • Update relatedDataSecurityCheck to validate inputs.
  • Disable or secure the /common/load-related-data endpoint.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-70557.

URL Resource
https://github.com/dibo-software/diboot
https://github.com/dibo-software/diboot/issues/104
https://github.com/dibo-software/diboot/issues/104
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-70557 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-70557 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-70557 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-70557 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Translated by [email protected]

    Oct. 24, 2026

    Action Type Old Value New Value
    Changed Translation Title: diboot-core de diboot, Description: El endpoint POST /common/load-related-data de diboot-core resuelve los nombres de campo proporcionados por el llamador a cualquier columna @TableField de cualquier entidad y devuelve esos valores para todas las filas, sin una lista blanca de campos o entidades. La única protección, relatedDataSecurityCheck(), devuelve verdadero incondicionalmente, por lo que cualquier usuario autenticado (incluida una cuenta sin rol) puede leer campos secretos anotados con @JsonIgnore como IamAccount.authSecret y IamAccount.secretSalt para cada cuenta, o campos secretos arbitrarios de cualquier otra entidad. El MD5 de dos iteraciones de Shiro con una sal de 8 caracteres es trivialmente crackeable offline, por lo que los hashes de contraseña de administrador divulgados se convierten en una toma de control administrativa completa. El endpoint no es código de ejemplo; el frontend oficial diboot-admin-ui lo requiere, por lo que las implementaciones que siguen la integración recomendada por el proveedor lo exponen. El mecanismo fue renombrado de relatedData a attachMore en la rama de desarrollo, pero attachMoreSecurityCheck() también devuelve verdadero incondicionalmente. Title: diboot-core de diboot, Description: El endpoint POST /common/load-related-data de diboot-core resuelve los nombres de campo proporcionados por el llamador a cualquier columna @TableField de cualquier entidad y devuelve esos valores para todas las filas, sin una lista blanca de campos o entidades. La única protección, relatedDataSecurityCheck(), devuelve verdadero incondicionalmente, por lo que cualquier usuario autenticado (incluida una cuenta sin rol) puede leer campos secretos anotados con @JsonIgnore como IamAccount.authSecret y IamAccount.secretSalt para cada cuenta, o campos secretos arbitrarios de cualquier otra entidad. El MD5 de dos iteraciones de Shiro con una sal de 8 caracteres es trivialmente crackeable offline, por lo que los hashes de contraseña de administrador divulgados se convierten en una toma de control administrativa completa. El endpoint no es código de ejemplo; el frontend oficial diboot-admin-ui lo requiere, por lo que las implementaciones que siguen la integración recomendada por el proveedor lo exponen. El mecanismo fue renombrado de relatedData a attachMore en la rama de desarrollo, pero attachMoreSecurityCheck() también devuelve verdadero incondicionalmente.
  • CVE Translated by [email protected]

    Oct. 23, 2026

    Action Type Old Value New Value
    Added Translation Title: diboot-core de diboot, Description: El endpoint POST /common/load-related-data de diboot-core resuelve los nombres de campo proporcionados por el llamador a cualquier columna @TableField de cualquier entidad y devuelve esos valores para todas las filas, sin una lista blanca de campos o entidades. La única protección, relatedDataSecurityCheck(), devuelve verdadero incondicionalmente, por lo que cualquier usuario autenticado (incluida una cuenta sin rol) puede leer campos secretos anotados con @JsonIgnore como IamAccount.authSecret y IamAccount.secretSalt para cada cuenta, o campos secretos arbitrarios de cualquier otra entidad. El MD5 de dos iteraciones de Shiro con una sal de 8 caracteres es trivialmente crackeable offline, por lo que los hashes de contraseña de administrador divulgados se convierten en una toma de control administrativa completa. El endpoint no es código de ejemplo; el frontend oficial diboot-admin-ui lo requiere, por lo que las implementaciones que siguen la integración recomendada por el proveedor lo exponen. El mecanismo fue renombrado de relatedData a attachMore en la rama de desarrollo, pero attachMoreSecurityCheck() también devuelve verdadero incondicionalmente.
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 07, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/dibo-software/diboot/issues/104
    Added SSVC {'id': 'CVE-2026-70557', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-07T17:39:40.899144Z'}
  • New CVE Received by [email protected]

    Aug. 06, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'diboot', 'product': 'diboot-core', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '3.9.0'}], 'defaultStatus': 'affected'}]
    Added Description diboot-core's POST /common/load-related-data endpoint resolves caller-supplied field names to any @TableField column of any entity and returns those values for all rows, with no field or entity allowlist. The only guard, relatedDataSecurityCheck(), returns true unconditionally, so any authenticated user (including a zero-role account) can read @JsonIgnore-annotated secret fields such as IamAccount.authSecret and IamAccount.secretSalt for every account, or arbitrary secret fields of any other entity. Shiro's two-iteration MD5 with an 8-character salt is trivially crackable offline, so the disclosed admin password hashes convert to full administrative takeover. The endpoint is not example code; the official diboot-admin-ui frontend requires it, so deployments following the vendor's recommended integration expose it. The mechanism was renamed relatedData* to attachMore* on the development branch, but attachMoreSecurityCheck() also returns true unconditionally.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/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
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-639
    Added Reference https://github.com/dibo-software/diboot
    Added Reference https://github.com/dibo-software/diboot/issues/104
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.