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Phoenix Security Vulnerability Weekly - Vulnerability News and Updates

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Discover the latest news and research on vulnerabilities through Vulnerability Weekly

Symply staying alert in the ever changing dynamics of cyber security does not afford you that privilege. Phoenix Security’s Vulnerability Weekly gives you the vulnerability news you need to update your knowledge on application security as well as the zero-day vulnerabilities. We extensively cover the latest topics and issues to make sure that you’re fully aware, informed, and up-to-date on the latest cybersecurity news at all times.

On a weekly basis, we venture into the world of IT security trends, providing up-to-date details on vulnerability analysis. Our updates range from breaking news on zero-day threats to detailed deliberations on the complexities of network security news.

Here at Phoenix Security, our expert team knows how important vulnerability management is when it comes to the protection of digital assets. This is why, our reports are more than mere news deliveries; they are aimed at immediate implementation of effective cyber security measures to strengthen your resilience. By making a note of software security updates and reporting on current cyber threat intelligence, we seek to equip our readers with the relevant knowledge to advance their application security program and vulnerability management program.

Vulnerability Weekly is more than news. It’s a repository of information that helps shed light on new researches and developments. Subscribe to our weekly cyber security report to stay ahead of all the recent technology security insights.

A chance to belong, a step ahead in cybersecurity. Expand your knowledge and increase your growth with Phoenix Security’s Weekly Vulnerability News. Explore a realm where data is mighty and that remaining current is a requisite for survival amidst cyber dangers.

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Latest Vulnerability News, Research and Analysis

MEGALODON_CI is an active zero-CVE campaign poisoning GitHub Actions workflow files across 3,500+ confirmed public repositories. Automated commits inject a base64-encoded credential harvester that exfiltrates AWS, GCP, and Azure secrets, OIDC tokens, SSH keys, and package registry credentials in a single runner execution. No CVE exists — every traditional scanner is blind to it.
Francesco Cipollone
TeamPCP (UNC6780) breached GitHub’s internal infrastructure on May 19–20, 2026 through a poisoned VS Code extension that ran silently on a developer’s endpoint and exfiltrated approximately 3,800 internal repositories. The attack produced no CVE. Standard CVE-feed scanners, SCA tools, and signed-provenance checks all missed it. This is exactly the zero-CVE developer trust surface gap Phoenix Blue Intelligence and Phoenix Blue Shield are built to close.
Francesco Cipollone
TeamPCP’s Mini Shai-Hulud worm hit GitHub and PyPI simultaneously on May 19–20, 2026. Three backdoored versions of durabletask — Microsoft’s Azure Python SDK with 417,000 monthly downloads — were published and yanked within hours. A poisoned VS Code extension on a GitHub employee device led to the exfiltration of ~3,800 internal repositories, now listed for sale at $50,000. Zero CVEs exist across the entire nine-week campaign. Traditional scanners have no record of any of it.
Francesco Cipollone
OpenAI has disclosed two employee devices were compromised in the May 11, 2026 Mini Shai-Hulud TanStack supply chain attack, with internal source code repositories accessed and iOS, macOS, and Windows code-signing certificates rotated. Mistral AI confirmed one developer device was hit and is facing a $25,000 TeamPCP extortion demand for an alleged 5 GB source code leak. Days later, TeamPCP launched a $1,000 Monero “supply chain attack contest” on BreachForums with the Shai-Hulud worm source code attached, and OX Security disclosed the first observed copycat campaign from a new actor publishing four malicious npm packages. Phoenix Security’s PHX-Neural scanner has independently flagged a 174,659-weekly-download PyPI package (nicegui 3.12.0) with a 100/100 behavioral score and full Shai-Hulud-aligned ATT&CK coverage. This article covers the upstream TanStack wave, the named victim disclosures, the TeamPCP infrastructure aging analysis, the technical breakdown of the four copycat packages, and the PHX-Neural behavioral evidence on the adjacent PyPI signal.
Francesco Cipollone

Vulnerability News Timeline

22nd May 2026

MEGALODON_CI: Automated GitHub Actions Workflow Poisoning and CI/CD Credential Harvesting at Scale

MEGALODON_CI is an active zero-CVE campaign poisoning GitHub Actions workflow...
Read More

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Derek

Derek Fisher

Head of product security at a global fintech

Derek Fisher – Head of product security at a global fintech. Speaker, instructor, and author in application security.

Derek is an award winning author of a children’s book series in cybersecurity as well as the author of “The Application Security Handbook.” He is a university instructor at Temple University where he teaches software development security to undergraduate and graduate students. He is a speaker on topics in the cybersecurity space and has led teams, large and small, at organizations in the healthcare and financial industries. He has built and matured information security teams as well as implemented organizational information security strategies to reduce the organizations risk.

Derek got his start in the hardware engineering space where he learned about designing circuits and building assemblies for commercial and military applications. He later pursued a computer science degree in order to advance a career in software development. This is where Derek was introduced to cybersecurity and soon caught the bug. He found a mentor to help him grow in cybersecurity and then pursued a graduate degree in the subject.

Since then Derek has worked in the product security space as an architect and leader. He has led teams to deliver more secure software in organizations from multiple industries. His focus has been to raise the security awareness of the engineering organization while maintaining a practice of secure code development, delivery, and operations.

In his role, Jeevan handles a range of tasks, from architecting security solutions to collaborating with Engineering Leadership to address security vulnerabilities at scale and embed security into the fabric of the organization.

Jeevan Singh

Jeevan Singh

Founder of Manicode Security

Jeevan Singh is the Director of Security Engineering at Rippling, with a background spanning various Engineering and Security leadership roles over the course of his career. He’s dedicated to the integration of security practices into software development, working to create a security-aware culture within organizations and imparting security best practices to the team.
In his role, Jeevan handles a range of tasks, from architecting security solutions to collaborating with Engineering Leadership to address security vulnerabilities at scale and embed security into the fabric of the organization.

James

James Berthoty

Founder of Latio Tech

James Berthoty has over ten years of experience across product and security domains. He founded Latio Tech to help companies find the right security tools for their needs without vendor bias.

christophe

Christophe Parisel

Senior Cloud Security Architect

Senior Cloud Security Architect

Chris

Chris Romeo

Co-Founder
Security Journey

Chris Romeo is a leading voice and thinker in application security, threat modeling, and security champions and the CEO of Devici and General Partner at Kerr Ventures. Chris hosts the award-winning “Application Security Podcast,” “The Security Table,” and “The Threat Modeling Podcast” and is a highly rated industry speaker and trainer, featured at the RSA Conference, the AppSec Village @ DefCon, OWASP Global AppSec, ISC2 Security Congress, InfoSec World and All Day DevOps. Chris founded Security Journey, a security education company, leading to an exit in 2022. Chris was the Chief Security Advocate at Cisco, spreading security knowledge through education and champion programs. Chris has twenty-six years of security experience, holding positions across the gamut, including application security, security engineering, incident response, and various Executive roles. Chris holds the CISSP and CSSLP certifications.

jim

Jim Manico

Founder of Manicode Security

Jim Manico is the founder of Manicode Security, where he trains software developers on secure coding and security engineering. Jim is also the founder of Brakeman Security, Inc. and an investor/advisor for Signal Sciences. He is the author of Iron-Clad Java: Building Secure Web Applications (McGraw-Hill), a frequent speaker on secure software practices, and a member of the JavaOne Rockstar speaker community. Jim is also a volunteer for and former board member of the OWASP foundation.

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