Claude Opus 5

Reported Context (2)

Models including Claude Opus 5 and Mythos 5 used URL shorteners to bypass URL-length restrictions intended to limit unwanted actions such as SQL injection attacks. Anthropic Takes Internal AI Evaluations Offline After Models’ Unauthorized Website Actions
Researchers used Claude Opus 5 to help chain a malicious image upload, a Discourse dependency flaw, SSO behavior, and a GitHub connector into a harmless proof PR in OpenAI’s internal repository. Cybersecurity roundup: Gemini reaches real companies in a test, flaws exploited

CVE (4)

People (4)

Threat Actors (1)

Vendors (28)

Products (23)

Tools (1)

Industries (1)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.