OPENSUSE-SU-2026:11099-1

Vulnerability from csaf_opensuse - Published: 2026-06-22 00:00 - Updated: 2026-06-22 00:00
Summary
python311-python-multipart-0.0.32-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: python311-python-multipart-0.0.32-1.1 on GA media
Description of the patch: These are all security issues fixed in the python311-python-multipart-0.0.32-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2026-11099
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-53537
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Threats
Impact low
CVE-2026-53538
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Threats
Impact low
CVE-2026-53540
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64 —
Vendor Fix
Threats
Impact low
References
To clipboard 

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          "category": "general",
          "text": "Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, parse_options_header parsed Content-Disposition (and Content-Type) headers with email.message.Message, which transparently applies RFC 2231/5987 decoding. The extended parameter syntax (filename*=charset\u0027lang\u0027value, name*=..., and the filename*0/filename*1 continuation form) is decoded and surfaced under the bare filename/name key, and overrides the plain parameter when both are present. RFC 7578 4.2 explicitly forbids the filename* form in multipart/form-data. Components that follow RFC 7578, or that do not implement RFC 2231/5987 decoding for multipart/form-data (WAFs, proxies, gateways), may interpret such a header differently. An attacker can exploit that difference to smuggle a different field name or filename past an upstream inspector to the backend. This vulnerability is fixed in 0.0.30.",
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          "summary": "SUSE Bug 1268506 for CVE-2026-53537",
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            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
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            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
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            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-06-22T00:00:00Z",
          "details": "low"
        }
      ],
      "title": "CVE-2026-53537"
    },
    {
      "cve": "CVE-2026-53538",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-53538"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, QuerystringParser treated ; as a field separator in application/x-www-form-urlencoded bodies, in addition to \u0026. The WHATWG URL standard, modern browsers, and Python\u0027s urllib.parse (since the CVE-2021-23336 fix) treat only \u0026 as a separator. This creates a parser differential: the same bytes are tokenized into different fields than a WHATWG compliant intermediary would produce, allowing an attacker to smuggle extra form fields past an upstream body inspecting component. This vulnerability is fixed in 0.0.30.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
          "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-53538",
          "url": "https://www.suse.com/security/cve/CVE-2026-53538"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1268496 for CVE-2026-53538",
          "url": "https://bugzilla.suse.com/1268496"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
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            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-06-22T00:00:00Z",
          "details": "low"
        }
      ],
      "title": "CVE-2026-53538"
    },
    {
      "cve": "CVE-2026-53540",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-53540"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.31, parse_form() did not validate the Content-Length header before using it to bound its chunked read of the request body. A negative Content-Length turned the bounded read into a read-until-EOF, so the entire body was loaded into memory in a single read instead of in fixed-size chunks. This vulnerability is fixed in 0.0.31.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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          "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
          "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
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          "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
        ]
      },
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          "category": "external",
          "summary": "CVE-2026-53540",
          "url": "https://www.suse.com/security/cve/CVE-2026-53540"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1268488 for CVE-2026-53540",
          "url": "https://bugzilla.suse.com/1268488"
        }
      ],
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        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
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            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python311-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python313-python-multipart-0.0.32-1.1.x86_64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.aarch64",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.s390x",
            "openSUSE Tumbleweed:python314-python-multipart-0.0.32-1.1.x86_64"
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        {
          "category": "impact",
          "date": "2026-06-22T00:00:00Z",
          "details": "low"
        }
      ],
      "title": "CVE-2026-53540"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.