Shared mutable cache bugs strike again: dev catalogs outages from Claude, banks, GitHub, Steam
threepointone · x · 2026-09-12
Developer threepointone catalogs a series of "shared mutable cache" bugs: Claude, UK banks, Klarna, GitHub, Steam, and his own incident at Myntra. He bets there are thousands more such cases and calls it his favorite bug — one every developer hits at least once in their career.
Related event: Garage Door API's Shared Cache Leaked Users' Data to Each Other(2 posts)→
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