billion laughs

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|computer security}} A type of [[denial-of-service attack]] which is aimed at [[parser]]s of [[XML]] documents, based on defining [[entity|entities]] that [[expand]] to large numbers of copies of other entities.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.