Hallucination
6 documented incidents where AI agents exhibited hallucination.
STUPID-2026-00336.4mediumMultiple LlmsVerified
Slopsquatting: LLMs hallucinate package names attackers pre-register (react-codeshift, unused-imports)
STUPID-2026-00362.9lowCursorVerified
Cursor's own support AI 'Sam' invented a one-device login policy, triggering subscription cancellations
STUPID-2026-00372.5lowMultiple LlmsVerified
AI 'slop' vulnerability reports flooded curl until it killed its bug bounty
STUPID-2026-00492.5lowMultiple LlmsVerified
AI 'CVE slop' is drowning open-source maintainers: 60-80% of HackerOne submissions now invalid
STUPID-2026-00082.1lowClaude CodeVerified
Claude Code hallucinated a non-existent npm package and installed it
STUPID-2026-00162.1lowDevinVerified