RCE Vulnerability in AI Code Editors Cursor, VS Code and Google Antigravity Threatens 50 Million Developers
Researchers at AISLE have disclosed a critical remote code execution vulnerability that affected the popular AI code editors Cursor, Microsoft Visual Studio Code and Google Antigravity. The flaw enabled an attacker to execute arbitrary code on a developer’s machine simply by embedding a malicious link inside a Git commit message. Approximately 50 million users were potentially at risk before patches were issued by all three vendors.
How the attack worked
The exploitation scenario closely mirrored normal development workflows. An attacker only needed to place a crafted link in a commit message. When a developer viewed the commit history inside the IDE and clicked the link, arbitrary code executed with the privileges of the current user. No pop-ups, confirmation dialogs or other indicators appeared during execution.
Successful exploitation allowed an attacker to:
- Steal API keys for services such as OpenAI, Anthropic and Stripe
- Install persistent malware that survived editor restarts
- Read or delete files on the local filesystem
- Run any commands under the logged-in user account
Why multiple editors were affected
Cursor was built as a fork of Visual Studio Code and inherited its architecture. The same underlying issue was later found in Google Antigravity, which also relies on VS Code components. This demonstrates the “shared component vulnerability” effect: when many AI tools reuse the same foundation, a single architectural flaw can propagate across multiple widely used products.
Why developers are high-value targets
Developer workstations typically contain corporate Git repositories, API and SSH keys, Kubernetes credentials and environment secrets. Compromising one machine often provides an initial foothold into broader corporate infrastructure. AI editors increase this risk by concentrating even more sensitive data and automation capabilities in a single environment.
Practical recommendations
Organizations using the affected editors should:
- Update to the latest patched versions immediately
- Scan developer workstations for suspicious activity
- Rotate any API keys, tokens or credentials that may have been stored locally
- Treat repository contents, including commit messages, as potentially untrusted
- Review AI-generated code and actions with heightened scrutiny
Related articles
Security Week 2644: Active Exploitation of PHP2Shell Vulnerabilities Confirmed
PHP developers released patches for two critical vulnerabilities collectively known as PHP2Shell on October 20, affecting PHP 8.2 through 8.5 as well as older branches. The flaws allow unauthenticated remote code execution on affected servers, which power approximately 70 percent of websites. Despite expectations of immediate exploitation, confirmed attacks with working exploits only began on October 25. CrowdStrike noted technical difficulties in weaponizing the issues in real-world environments. Only one-fifth of top Russian websites had applied the fixes by October 25. Additional incidents included compromised eMudhra certificates, a critical GitLab flaw, and a 16-year-old Broadcom router vulnerability.
Positive Technologies Offers Up to 500,000 Rubles for Bypassing PT Application Firewall
Positive Technologies has expanded its Standoff Bug Bounty program to include rewards for bypassing its web application firewalls. Researchers can earn between 150,000 and 500,000 rubles for demonstrating practical bypasses against PT Application Firewall PRO and PT Application Firewall Cloud. The program targets the core protective mechanisms, including traffic filtering, attack detection rules, and the management layer used by administrators. Submissions must include reproducible attack scenarios that show how malicious requests can pass through undetected, rather than relying on scanner reports or theoretical findings. Reward amounts vary by severity and confirmed business impact, with critical issues in the PRO version paying up to 500,000 rubles. The company plans to use validated findings to strengthen detection rules and improve overall product resilience.
Tailscale SSH Vulnerability Allows Root Access via Unix Socket Redirection
A researcher identified flaws in Tailscale that let an attacker with existing SSH access on one node escalate to root privileges and move laterally across the network. Erica Windisch of Cyberdione Labs demonstrated the issues in lab conditions against Tailscale 1.104.2 and Headscale 0.29.5. The core problem stems from privileged operations performed by the tailscaled process when handling Unix socket redirection, granting an ordinary SSH session access to root-only resources. The researcher used the technique to interact with Docker and run elevated commands, and showed that broad access policies allow automated lateral movement in under a second. Additional issues include denial-of-service conditions and bypasses of certain restrictions. Recommendations include reviewing SSH policies and disabling unnecessary socket redirection, noting that Headscale 0.29.5 lacks an independent way to turn the feature off.
Critical CVE-2026-111497 Out-of-Bounds Write Flaw in Google Brotli Decoder Impacts Broad Range of Environments
A severe vulnerability has been identified in the Google-developed Brotli decoder used for decompressing data in web communications and other applications. The flaw, tracked as CVE-2026-111497, allows out-of-bounds writes when processing specially crafted compressed data, potentially enabling arbitrary code execution, information disclosure, or denial of service. It carries a CVSS v4.0 base score of 9.2 and is rated Critical. Google has released patched versions 1.2.1, 1.1.1, and 1.0.10 of the library. Node.js incorporated the fix in its updates, while Microsoft issued an out-of-band patch for .NET on October 25, 2026, to address the issue. The vulnerability affects any environment relying on the Brotli C implementation for data decompression.