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Resumen de 26 notas de ciberseguridad publicadas el 26 de octubre de 2026. Los temas con más cobertura: ia y seguridad (8), herramientas e investigación (7), vulnerabilidades (6).
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Microsoft ha corregido una vulnerabilidad de severidad alta (CVE-2026-80097) en Authenticator para Android. Este fallo permitía que aplicaciones maliciosas, incluso sin permisos declarados, pudieran robar tokens de acceso de cuentas de trabajo debido a un error de autenticación…
The number of cybersecurity startups attempting to cash in on the AI boom is staggering. But an analysis of the cybersecurity marketplace indicates that the incumbents, rather than resting on their laurels and opening themselves up for disruption, are quickly adapting to the new…
Built on an evolutionary engine first released in 2018, STAR Fuzzer by Bright Security finds crashes, memory exhaustion and memory-safety bugs in security-critical code without a running application. In its first open source research run, it found High or Critical issues in 45%…
La vulnerabilidad HTTP2Shell afecta a más que el tráfico web; nuevas investigaciones revelan que el fallo en el decodificador Brotli (CVE-2026-111497) puede comprometer aplicaciones .NET, el procesamiento de medios de FFmpeg, servidores ClickHouse y cargas de trabajo de Apache…
Witness is an open-source command-line tool that records how software gets built, signs that record, and checks it against a policy before the software ships. TestifySec built Witness and donated it to the in-toto ecosystem within the Cloud Native Computing Foundation, and an…
IA y seguridadHerramientas e investigación
Investigadores descubrieron que archivos de instrucciones maliciosos (como `AGENTS.md`) pueden engañar a agentes de IA como OpenAI Codex y Claude Code para instalar software dañino o robar tokens de acceso. El ataque aprovecha que los navegadores descargan archivos…
Herramientas e investigaciónIA y seguridad
The maintainers of large open source projects are taking the worst of the AI slop. In a Linux Foundation survey of 234 open source contributors and maintainers, people running projects with more than 50 contributors estimated that close to a third of the code changes landing in…
A malicious instruction file sitting in a developer's Downloads folder tried to make their AI coding agent install a known-malicious npm package, security firm Forever Security said in a report published last week. The company caught the attempt on a real customer's machine and…
An AI SOC that starts with somebody else’s alert is already too late. Stellar Cyber collects and normalizes telemetry, detects suspicious activity, correlates evidence, builds cases, investigates incidents, triages findings, and drives response from the same security…
AI agents that have not run recently retain credentials and connections to company systems, according to Arrakis Security’s 2026 Autonomous Agents Threat Report. About 76% of enabled agents examined had not run in 60 days, leaving access available through inactive software.…
Criminals are exploiting established customer accounts and familiar brands to steal money and personal information, according to TransUnion’s Fraud in the Age of Continuous Trust report. Eighty-one percent of suspected digital fraud in its network during the first half of 2026…
IA y seguridadHerramientas e investigación
Moderators of r/opensource, Reddit’s catch-all forum for open source software, have barred any project that “uses AI, is made by AI, or is intended for AI.” Moderator Wolvereness announced the rules in a post over the weekend. A project now has to be at least a year old and…
IA y seguridadHerramientas e investigación
Google has open-sourced the Elephant-Goldfish Model plugin, an internal tool that makes an AI coding agent write and defend a design document before it touches any code. The plugin hands that document to fresh AI sessions that have never seen the design conversation and tells…
Una vulnerabilidad en News Kit Addons For Elementor expone sitios a modificación de metadatos protegidos sin validación de permisos
CVE-2026-113491 afecta a GeoDirectory en versiones anteriores a 2.8.194 — cualquier cuenta de suscriptor puede acceder a archivos fuera de la raíz web
Ciberseguridad
Una acción AJAX sin verificación de permisos en Pixel Tag Manager expone a tiendas online a ejecución de código malicioso controlado por colaboradores.
CVE-2026-111497 afecta a Bun, paquetes Python y proxies Envoy — cualquier implementación que descomprima datos Brotli sin validación previa queda vulnerable.
