CVE-2026-18503

2026-08-10

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff().

Attacker-controlled CSV samples can trigger super-linear

regular-expression work during dialect sniffing and consume significant

CPU when applications pass unbounded input to csv.Sniffer.sniff().