privilege-escalation — Cybersecurity News

Microsoft Patches SharePoint RCE Flaw CVE-2026-45659 Across Server Versions

RedSide Security May 27, 2026 CVE 119 views

PoC Exploit Released for 20-Year Old PostgreSQL RCE Vulnerability

RedSide Security May 20, 2026 Vulnerability 90 views

A public proof-of-concept (PoC) exploit has been released for **CVE-2026-2005**, a critical remote code execution vulnerability in PostgreSQL’s **pgcrypto extension**. The flaw stems from a long-standing heap-based buffer overflow in PGP session key parsing and can allow attackers to escalate privileges to PostgreSQL superuser and execute operating system commands under certain conditions.

GitHub Breached - Employee Device Hack Led to Exfiltration of 3,800+ Internal Repos

RedSide Security May 20, 2026 Data Leaks & Breaches 85 views

GitHub is investigating unauthorized access to its internal repositories following a supply chain attack linked to the threat actor **TeamPCP**, who reportedly listed GitHub source code and internal data for sale on a cybercrime forum. The incident is part of an ongoing malware campaign targeting open-source ecosystems, including a compromised Microsoft Python package and a self-replicating infostealer known as Mini Shai-Hulud.

First Public macOS Kernel Exploit on Apple M5 Prepared Using Mythos Preview in Five Days

RedSide Security May 17, 2026 Vulnerability 200 views

Security researchers have reportedly developed the first public macOS kernel exploit targeting Apple’s new M5 silicon, successfully bypassing the company’s hardware-based Memory Integrity Enforcement (MIE) protections. The exploit chain achieves full root access on macOS 26.4.1 using only standard system calls from an unprivileged local account, highlighting the growing impact of AI-assisted offensive security research.