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Threats Tagged 'cve-2026-18503'

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Threats Tagged 'cve-2026-18503'

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CVE-2026-18503: CWE-1176 in Python Software Foundation CPythonCVE-2026-18503
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CVE-2026-18503 is a low-severity vulnerability in the Python Software Foundation's CPython implementation. It involves the csv.Sniffer.sniff() function, which can experience super-linear regular-expression processing when handling attacker-controlled CSV input. This can lead to significant CPU consumption when unbounded input is passed to this function. The vulnerability affects certain CPython versions prior to 3.16.0, including 3.14.0 and 3.15.0a1.

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