Weekly Recap: Outlook Add-Ins Hijack, 0-Day Patches, Wormable Botnet & AI Malware

This week’s recap shows how small gaps are turning into big entry points. Not always through new exploits, often through tools, add-ons, cloud setups, or workflows that people already trust and rarely question. Another signal: attackers are mixing old and new methods. Legacy botnet tactics, moder...

EUVD-2026-6097

Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when name is used in an email template, it will be replaced with the buyer's name for the final email. This mechanism contained two security-relevant bugs: It was possible to exfiltrate information...

pretix unsafely evaluates variables in emails

Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when name is used in an email template, it will be replaced with the buyer's name for the final email. This mechanism contained two security-relevant bugs: - It was possible to exfiltrate informati...

CVE-2026-2451

CVE-2026-2451 concerns pretix: an information-exfiltration flaw via email template placeholders. When templates substitute user data (e.g., {name}), an attacker who can control templates could craft placeholders like {{event.init .code .co_filename}} to read sensitive system configuration data, p...

A week in security (February 9 – February 15)

Last week on Malwarebytes Labs: How to find and remove credential-stealing Chrome extensions Fake shops target Winter Olympics 2026 fans Outlook add-in goes rogue and steals 4,000 credentials and payment data Child exploitation, grooming, and social media addiction claims put Meta on trial Apple...

MAL-2026-911 Malicious code in malpkgv2-0 (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: oracle-using-macaron 1f614e8ee6cce92be8b98394967c253336c0145808962bfda5032f085ece4eef This package executes arbitrary commands, steals sensitive data, exfiltrates credentials, and uses obfuscation techniques...

Malicious code in malpkgv2-0 (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: oracle-using-macaron 1f614e8ee6cce92be8b98394967c253336c0145808962bfda5032f085ece4eef This package executes arbitrary commands, steals sensitive data, exfiltrates credentials, and uses obfuscation techniques...

📄 FortiGate Advanced Symlink Bypass Exploit

This Python script is an advanced exploitation tool targeting vulnerable FortiGate devices manufactured by Fortinet. It attempts to exploit a symlink/path bypass vulnerability via the /lang//custom/ endpoint in order to access sensitive internal files that should not be publicly accessible...

CVE-2026-26334

Calero VeraSMART versions prior to 2026 R1 contain hardcoded static AES encryption keys within Veramark.Framework.dll Veramark.Core.Config class. These keys are used to encrypt the password of the service account stored in C:\\VeraSMART Data\\app.settings. An attacker with local access to the...

FreeBSD : munge -- CWE-787: Out-of-bounds Write (17186409-09d2-11f1-a39c-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 17186409-09d2-11f1-a39c-b42e991fc52e advisory. https://github.com/dun/munge/security/advisories/GHSA-r9cr-jf4v-75gh reports: MUNGE is an authenticatio...

CVE-2026-26190

Milvus is an open-source vector database built for generative AI applications. Prior to 2.5.27 and 2.6.10, Milvus exposes TCP port 9091 by default, which enables authentication bypasses. The /expr debug endpoint uses a weak, predictable default authentication token derived from etcd.rootPath...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : MUNGE vulnerability (USN-8040-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8040-1 advisory. Titouan Lazard discovered that MUNGE contained an exploitable buffer overflow in munged the...

CVE-2026-26334

Calero VeraSMART versions prior to 2026 R1 contain hardcoded static AES encryption keys within Veramark.Framework.dll Veramark.Core.Config class. These keys are used to encrypt the password of the service account stored in C:\VeraSMART Data\app.settings. An attacker with local access to the...

GHSA-P5VF-5754-X7P3 `polymarket-client-sdks` was removed from crates.io for malicious code

It appeared to be typosquatting existing crate polymarket-client-sdk sdks vs sdk and attempting to steal credentials from local files. The malicious crate had 1 version published on 2026-02-09 and had been downloaded only 33 times. There were no crates depending on this crate on crates.io. Thanks...

CVE-2026-26190

Milvus (open-source vector database) prior to versions 2.5.27 and 2.6.10 exposes TCP port 9091 by default, enabling authentication bypasses. The /expr debug endpoint uses a weak, predictable default token derived from etcd.rootPath (default: by-dev), allowing arbitrary expression evaluation. The ...

CVE-2026-26190 Milvus Allows Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise

Milvus is an open-source vector database built for generative AI applications. Prior to 2.5.27 and 2.6.10, Milvus exposes TCP port 9091 by default, which enables authentication bypasses. The /expr debug endpoint uses a weak, predictable default authentication token derived from etcd.rootPath...

How to find and remove credential-stealing Chrome extensions

Researchers have found yet another family of malicious extensions in the Chrome Web Store. This time, 30 different Chrome extensions were found stealing credentials from more than 260,000 users. The extensions rendered a full-screen iframe pointing to a remote domain. This iframe overlaid the...

OESA-2026-1406 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup’s WebSocket frame processing when handling incoming...

OESA-2026-1408 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup’s WebSocket frame processing when handling incoming...

OESA-2026-1405 libsoup security update

libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications. Security Fixes: A flaw was found in libsoup’s WebSocket frame processing when handling incoming...