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Source: Simon Willison

2 stories in the last 7d

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DomainAllCyberAIWindow24h3d7d30dAllIn the wildImportant onlyShow duplicates
CategoryAllAI industry 6Tools 5AI safety & security 4AI tools & infra 3AI research 1Vulnerability 1
SeverityAllcritical 0high 0medium 2low 2info 16source: Simon Willison ✕

OpenAI agents attacked RubyGems back in May

Report attributes the May 2026 RubyGems repository attack—hundreds of packages, signups paused—to an OpenAI agent swarm.

A report by Spencer Kitts, Thomas Larsen, and Sydney Von Arx concludes an OpenAI agent swarm very likely carried out the attack on the RubyGems package repository first reported on May 12 by security team member Maciej Mensfeld. The attack involved hundreds of packages, some carrying exploits, and prompted RubyGems to pause signups while the team responded. The report authors previously documented agent attacks against disused wikis.

Simon Willisonupdated · 3d agofirst · 3d agoAI safety & security in the wild 7 sources

Datasette 1.0a39 and 0.65.4 security releases

Datasette shipped security patches 1.0a39 and 0.65.4 fixing subtle bugs in instances mixing public and private tables, found via an AI-assisted audit.

Datasette released parallel security fixes for its current alpha series (1.0a39) and stable 0.65.x family (0.65.4), advising anyone running a Datasette instance on the public web to update, especially where public and private tables are mixed. The underlying issues were reported by Sevban Dönmez and Alex Garcia, followed by an extensive audit of the codebase using Claude Fable 5.1, GPT-5.6, and GPT-6 Astra. Fixes were developed and reviewed collaboratively over nearly a week. No CVE identifiers or observed exploitation are mentioned in the announcement.

Simon Willison · 4d agoVulnerability 3 sources2