Vulnerabilidades

Con el objetivo de informar, advertir y ayudar a los profesionales sobre las últimas vulnerabilidades de seguridad en sistemas tecnológicos, ponemos a disposición de los usuarios interesados en esta información una base de datos con información en castellano sobre cada una de las últimas vulnerabilidades documentadas y conocidas.

Este repositorio con más de 75.000 registros esta basado en la información de NVD (National Vulnerability Database) – en función de un acuerdo de colaboración – por el cual desde INCIBE realizamos la traducción al castellano de la información incluida. En ocasiones este listado mostrará vulnerabilidades que aún no han sido traducidas debido a que se recogen en el transcurso del tiempo en el que el equipo de INCIBE realiza el proceso de traducción.

Se emplea el estándar de nomenclatura de vulnerabilidades CVE (Common Vulnerabilities and Exposures), con el fin de facilitar el intercambio de información entre diferentes bases de datos y herramientas. Cada una de las vulnerabilidades recogidas enlaza a diversas fuentes de información así como a parches disponibles o soluciones aportadas por los fabricantes y desarrolladores. Es posible realizar búsquedas avanzadas teniendo la opción de seleccionar diferentes criterios como el tipo de vulnerabilidad, fabricante, tipo de impacto entre otros, con el fin de acortar los resultados.

Mediante suscripción RSS o Boletines podemos estar informados diariamente de las últimas vulnerabilidades incorporadas al repositorio.

CVE-2026-34225

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.7.2 and below contain a Blind Server Side Request Forgery in the functionality that allows editing an image via a prompt. The affected function performs a GET request to a user-provided URL with no restriction on the domain, allowing the local address space to be accessed. Since the SSRF is blind (the response cannot be read), the primary impact is port scanning of the local network, as whether a port is open can be determined based on whether the GET request succeeds or fails. These response differentials can be automated to iterate through the entire port range and identify open ports. If the service running on an open port can be inferred, an attacker may be able to interact with it in a meaningful way, provided the service offers state-changing GET request endpoints. This issue was unresolved at the time of publication.

Gravedad CVSS v3.1: MEDIA

Última modificación:

21/04/2026

CVE-2026-39424

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, the chat export feature is vulnerable to Improper Neutralization of Formula Elements in a CSV File. When an administrator exports the application chat history to an Excel file (.xlsx) via the /admin/api/workspace/{workspace_id}/application/{application_id}/chat/export endpoint, strings starting with formula characters are written directly without proper sanitization. Opening this file in spreadsheet applications like Microsoft Excel can lead to Arbitrary Code Execution (RCE) on the administrator&#39;s workstation via Dynamic Data Exchange (DDE). The issue is a variant of CVE-2025-4546, which fixed the exact same pattern in apps/dataset/serializers/document_serializers.py but missed the application chat export sink. This issue has been fixed in version 2.8.0.

Gravedad CVSS v4.0: MEDIA

Última modificación:

20/04/2026

CVE-2026-39423

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including administrators, resulting in Stored Cross-Site Scripting (XSS). This issue has been fixed in version 2.8.0.

Gravedad CVSS v4.0: MEDIA

Última modificación:

20/04/2026

CVE-2026-39422

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting (XSS) vulnerability through the application name or icon fields when creating an application. When a victim visits the public chat interface (/ui/chat/{access_token}), the ChatHeadersMiddleware retrieves the application data and directly inserts the unescaped application name and icon into the HTML response via string replacement. This allows an attacker to execute arbitrary JavaScript in the victim&#39;s browser context. This issue has been fixed in version 2.8.0.

Gravedad CVSS v4.0: MEDIA

Última modificación:

20/04/2026

CVE-2026-39421

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python&#39;s ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LD_PRELOAD-based sandbox.so module to achieve arbitrary code execution via direct kernel system calls, enabling full network exfiltration and container compromise. The library intercepts critical standard system functions such as execve, system, connect, and open. It also intercepts mprotect to prevent PROT_EXEC (executable memory) allocations within the sandboxed Python processes, but pkey_mprotect is not blocked. This issue has been fixed in version 2.8.0.

Gravedad CVSS v3.1: MEDIA

Última modificación:

20/04/2026

CVE-2026-39420

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LD_PRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop the sandbox.so hook, leading to unrestricted Remote Code Execution (RCE) and network access. MaxKB restricts untrusted Python code execution via the Tool Debug API by injecting sandbox.so through the LD_PRELOAD environment variable. This intercepts sensitive C library functions (like execve, socket, open) to restrict network and file access. However, a patch allowed the /usr/bin/env utility to be executed by the sandboxed user. When an attacker is permitted to create subprocesses, they can execute the env -i python command. The -i flag instructs env to completely clear all environment variables before running the target program. This effectively drops the LD_PRELOAD environment variable. The newly spawned Python process will therefore execute natively without any sandbox hooks, bypassing all network and file system restrictions. This issue has been fixed in version 2.8.0.

Gravedad CVSS v3.1: MEDIA

Última modificación:

20/04/2026

CVE-2026-39418

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, sandbox network protection can be bypassed by using socket.sendto() with the MSG_FASTOPEN flag. This allows authenticated user with tool-editing permissions to reach internal services that are explicitly blocked by the sandbox&#39;s banned hosts configuration. MaxKB&#39;s sandbox uses LD_PRELOAD to hook the connect() function and block connections to banned IPs, but Linux&#39;s sendto() with the MSG_FASTOPEN flag can establish TCP connections directly through the kernel without ever calling connect(), completely bypassing the IP validation. Although sendto is listed in the syscall() wrapper, this is ineffective because glibc invokes the kernel syscall directly rather than routing through the hooked syscall() function. This issue has been fixed in version 2.8.0.

Gravedad CVSS v3.1: MEDIA

Última modificación:

20/04/2026

CVE-2026-34262

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** Information Disclosure Vulnerability in SAP HANA Cockpit and HANA Database Explorer

Gravedad CVSS v3.1: MEDIA

Última modificación:

04/05/2026

CVE-2026-34264

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** During authorization checks in SAP Human Capital Management for SAP S/4HANA, the system returns specific messages. Due to this, an authenticated user with low privileges could guess and enumerate the content shown, beyond their authorized scope. This leads to disclosure of sensitive information causing a high impact on confidentiality, while integrity and availability are unaffected.

Gravedad CVSS v3.1: MEDIA

Última modificación:

04/05/2026

CVE-2026-34256

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** Due to a missing authorization check in SAP ERP and SAP S/4HANA (Private Cloud and On-Premise), an authenticated attacker could execute a particular ABAP report to overwrite any existing eight?character executable ABAP report without authorization. If the overwritten report is subsequently executed, the intended functionality could become unavailable. Successful exploitation impacts availability, with a limited impact on integrity confined to the affected report, while confidentiality remains unaffected.

Gravedad CVSS v3.1: ALTA

Última modificación:

17/04/2026

CVE-2026-34257

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** Due to an Open Redirect vulnerability in SAP NetWeaver Application Server ABAP, an unauthenticated attacker could craft malicious URL that, if accessed by a victim, they could be redirected to the page controlled by the attacker. This causes low impact on confidentiality and integrity of the application with no impact on availability.

Gravedad CVSS v3.1: MEDIA

Última modificación:

17/04/2026

CVE-2026-34261

Fecha de publicación:

14/04/2026

Idioma:

Inglés

*** Pendiente de traducción *** Due to a missing authorization check in SAP Business Analytics and SAP Content Management, an authenticated user could make unauthorized calls to certain remote function modules, potentially accessing sensitive information beyond their intended permissions. This vulnerability affects confidentiality, with no impact on integrity and availability.

Gravedad CVSS v3.1: MEDIA

Última modificación:

17/04/2026

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