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    2 vulnerabilities found for multipart by defnull

    CVE-2026-28356 (GCVE-0-2026-28356)

    Vulnerability from nvd – Published: 2026-03-12 16:45 – Updated: 2026-06-30 12:08
    VLAI
    Title
    ReDoS in multipart 1.3.0 - `parse_options_header()`
    Summary
    multipart is a fast multipart/form-data parser for python. Prior to 1.2.2, 1.3.1 and 1.4.0-dev, the parse_options_header() function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking (ReDoS) when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for denial of service (DoS) attacks against web applications using this library to parse request headers or multipart/form-data streams. The issue is fixed in 1.2.2, 1.3.1 and 1.4.0-dev.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-1333 - Inefficient Regular Expression Complexity
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-28356 (GCVE-0-2026-28356)

    Vulnerability from cvelistv5 – Published: 2026-03-12 16:45 – Updated: 2026-06-30 12:08
    VLAI
    Title
    ReDoS in multipart 1.3.0 - `parse_options_header()`
    Summary
    multipart is a fast multipart/form-data parser for python. Prior to 1.2.2, 1.3.1 and 1.4.0-dev, the parse_options_header() function in multipart.py uses a regular expression with an ambiguous alternation, which can cause exponential backtracking (ReDoS) when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for denial of service (DoS) attacks against web applications using this library to parse request headers or multipart/form-data streams. The issue is fixed in 1.2.2, 1.3.1 and 1.4.0-dev.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-1333 - Inefficient Regular Expression Complexity
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}