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Threats Tagged 'cve-2026-0672'

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Active filters (1):Tag: cve-2026-0672

Threats Tagged 'cve-2026-0672'

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This security update for Python 3.13 addresses multiple header injection vulnerabilities affecting email and HTTP header processing. The issues include injection via long email comments, user-controlled data URLs, cookie values, and improper newline quoting during email serialization. The update also includes various bug fixes and performance improvements unrelated to security. No explicit patch status is provided, but the update to version 3.13.12 indicates these vulnerabilities have been fixed in that release.

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When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.

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If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.

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