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Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()

🗓️ 15 Aug 2026 02:05:56Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Super-linear CPU usage in Python csv.Sniffer.sniff() with unbounded input causing DoS.

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23 Aug 2026 21:57Current
5.2Medium risk
Vulners AI Score5.2
CVSS 42.4
EPSS0.00119
SSVC
2