CoolingSafety
Cloudflare: GLM-5.3 on Workers AI leaked other users' data in 155 responses
Cloudflare says that from Aug. 27 to Sept. 9, 155 responses from GLM-5.3 on Workers AI, all to prompts over 681,280 tokens, contained other customers' request data. It blames a KV pool smaller than the context window plus an SGLang bug, says no other model was affected and it found no evidence of deliberate exploitation.
- HEAT
- OUTLETS
- 1
- HACKER NEWS
- 127 pts
- FIRST SEEN
- LAST SIGNAL
Primary source
Cloudflareblog.cloudflare.com/kv-cache-exposure-remediation/Coverage · 1 article, oldest first
Monday, October 26, 2026
cloudflare.com127 pts on HN
Cross-request KV cache exposure in the GLM-5.3 Workers AI model (155 responses)