UNKNOWN Microsoft

CVE-2026-18503

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

Microsoft Security Update 2026-Aug: Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()

Affected Products

azl3 python3 3.12.9-14 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-18503
https://nvd.nist.gov/vuln/detail/CVE-2026-18503

Published: 2026-08-11 · Source: Microsoft · Feed updated: 2026-09-24

This unknown severity vulnerability was published on 2026-08-11 via Microsoft. Affected: azl3 python3 3.12.9-14 on Azure Linux 3.0.

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