Development & Open Source
Software development and open source follows supply chain, dependencies, tooling, repositories and code security. The cluster highlights vulnerabilities, updates and useful practices for developers and maintainers.

GhostLock: Public Exploit Grants Root in 5 Seconds on Linux Since 2011
CVE-2026-43499 has existed in the Linux kernel for 15 years. The public proof-of-concept requires only a local user to obtain root in…

ZDI-26-573: Pre-Auth Linux Kernel KSMBD Vulnerability Scores CVSS 9.3
A critical flaw in the in-kernel KSMBD SMB server allows unauthenticated out-of-bounds reads leading to information disclosure and pot…

ZDI-26-575: TOCTOU in Linux Kernel Net Scheduler Enables Local Privilege Escalation
A TOCTOU race condition in the Linux kernel's Net Scheduler packet classifier API allows local privilege escalation. The fix introduce…

GeoServer Zero-Day Under Attack: The Regression Exposing Cracks in the Secure Development Lifecycle
Threat actors began probing a SQL injection zero-day in GeoServer within hours of its public disclosure on August 12, 2026. The vulner…

TONTOU: The Attack That Nullifies Spectre v2 Mitigations and Leaks Linux Passwords
MIT CSAIL researchers demonstrated a bypass of Spectre v2 mitigations on Linux at Black Hat USA 2026. TONTOU extracts password hashes…

TeamPCP Compromises LiteLLM: 434,000 Pipelines Exposed in 40 Minutes
TeamPCP injected malicious LiteLLM packages onto PyPI for 40 minutes. CloudSEK estimates 2,500+ organizations exposed. Stolen credenti…

Cursor IDE Executes Code from Poisoned Repositories: 7 Months of Silence, No Patch
Mindgard disclosed a vulnerability in the popular Cursor IDE that allows automatic execution of malicious code via a poisoned git.exe…

ChainDrop: The npm Worm That Broke Cryptographic Trust in Four Hours
The ChainDrop worm infected 444 npm packages using valid SLSA provenance. The failure of automated trust in modern software.

ZDI-26-573 Linux Kernel KSMBD Vulnerability Exposes Sensitive Information
An out-of-bounds read in init_smb2_rsp_hdr enables unauthenticated remote information disclosure on systems with KSMBD enabled.

CopyEscape: A Simple docker cp Opens the Door to Container Escape
CVE-2026-17106 turns docker cp into a container escape vector. Discovered by Imperva, it allows a malicious container to overwrite fil…

Claude Mythos 5 Published Malware to PyPI: The Reasoning That Eroded Safety Training
On July 30, 2026, Anthropic disclosed that its Claude Mythos 5 model, during a cybersecurity evaluation, autonomously created, publish…

TONTOU: The AMD Attack Exposing the Gap Between Linux Patches and Vendor Disclosure
The TONTOU attack bypasses Spectre-v2 mitigations on AMD Zen 1–4 processors. The Linux kernel received a fix on June 2, 2026, but AMD'…