usn-8176-1
Vulnerability from osv_ubuntu
Published
2026-04-15 19:22
Modified
2026-06-30 15:55
Summary
dotnet8, dotnet9, dotnet10 vulnerabilities
Details

Ludvig Pedersen discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to consume excessive resources, resulting in a denial of service. (CVE-2026-33116, CVE-2026-26171)

Ludvig Pedersen and Kevin Jones discovered that the System.Security.Cryptography.Xml library in .NET incorrectly handled certain XML inputs. An attacker could possibly use this issue to cause .NET to crash, resulting in a denial of service. (CVE-2026-32203)

Ludvig Pedersen discovered that the System.Net.Mail component in .NET incorrectly handled certain inputs. An attacker could possibly use this issue to perform a network spoofing attack. (CVE-2026-32178)

References
To clipboard 

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  ],
  "aliases": [],
  "details": "Ludvig Pedersen discovered that the System.Security.Cryptography.Xml\nlibrary in .NET incorrectly handled certain XML inputs. An attacker could\npossibly use this issue to consume excessive resources, resulting in a\ndenial of service. (CVE-2026-33116, CVE-2026-26171)\n\nLudvig Pedersen and Kevin Jones discovered that the\nSystem.Security.Cryptography.Xml library in .NET incorrectly handled\ncertain XML inputs. An attacker could possibly use this issue to cause\n.NET to crash, resulting in a denial of service. (CVE-2026-32203)\n\nLudvig Pedersen discovered that the System.Net.Mail component in .NET\nincorrectly handled certain inputs. An attacker could possibly use this\nissue to perform a network spoofing attack. (CVE-2026-32178)",
  "id": "USN-8176-1",
  "modified": "2026-06-30T15:55:16Z",
  "published": "2026-04-15T19:22:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8176-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-26171"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-32178"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-32203"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-33116"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dotnet8, dotnet9, dotnet10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-26171",
    "UBUNTU-CVE-2026-32178",
    "UBUNTU-CVE-2026-32203",
    "UBUNTU-CVE-2026-33116"
  ]
}



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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.