CVE-2026-18503: Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-14

EPSS Score

0.12% (percentile: 2.1%)

Affected Products (2)

Other

• 21694-17084
• 21021-17084

Revision History

• 2026-08-14: Information published.