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Terminal de contenedores nevada con grúas portuarias y miles de contenedores apilados: la cadena de suministro por la que viaja el código que instalas

10 Aug 2026 8 min read

ChainDrop: 444 npm packages compromised and not a single patch to apply

On 4 August, between 09:35 and 13:20 UTC, a worm spread by itself across 444 npm packages, stealing the credentials it needed to keep spreading. The first malicious version went out through the legitimate pipeline, carrying a valid provenance signature. And there is a trap that inverts the correct reflex: revoking the stolen token is exactly what fires the next payload. What to look for in your lockfiles, in what order to rotate, and why there is no fixed version to install here.

Development CI/CD Cybersecurity

CVE-2026-34486 en Apache Tomcat: el EncryptInterceptor procesaba los mensajes del clúster aunque fallara el descifrado, un control de seguridad que falla abriendo

5 Aug 2026 8 min read

If decryption fails, the message goes through anyway

The fix for the Apache Tomcat vulnerability CISA flagged as exploited on 4 August fits in a single line of code moved somewhere else. For two weeks, if decryption of a cluster message failed, Tomcat logged the error and processed the message anyway. And only 11.0.20, 10.1.53 and 9.0.116 were affected: precisely the versions carrying the patch for the previous flaw. What it means for a control to "fail open", why the log was the only signal, and what we check.

Cybersecurity Applications Open Source

CVE-2026-66066, un fallo de CVSS 9,5 en Active Storage de Ruby on Rails, permite leer ficheros del servidor subiendo una imagen cuando la aplicación procesa variantes con libvips

3 Aug 2026 8 min read

A 9.5 in Rails: the flaw is not in your application, it is in the library nobody chose

On 29 July 2026 Rails published CVE-2026-66066: a 9.5 in Active Storage letting an unauthenticated attacker read files from the server — including the process environment with secret_key_base and the database credentials — by uploading an image. The flaw is not in the code you commissioned, nor exactly in Rails: it is in which formats libvips considers safe to read, a C library nobody at your company chose. And libvips has published since 2022 which of its operations it has not verified, with a switch to block them. The label was there; what was missing was flipping it.

Applications Development Cybersecurity

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