Vulnerability-Lookup

CVE-2026-93012 (GCVE-0-2026-93012)

Vulnerability from cvelistv5 – Published: 2026-09-21 17:19 – Updated: 2026-09-22 19:26

Title

Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe

Summary

Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe. On MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header. An attacker who controls one of those header addresses runs commands as the sending process.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 19:26 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 63/100 over 288 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/rjbs/Email-Sender/commit/9a587…	patch
https://metacpan.org/release/RJBS/Email-Sender-2.…	release-notes
http://www.openwall.com/lists/oss-security/2026/09/21/8

Impacted products

1 product

Vendor	Product	Version	CPE status
		Affected: 0 , < 2.602 (custom)

Credits

贺宇杰

Show details on NVD website

JSON

To clipboard

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      "title": "Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe",
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      "title": "SUSE CVE CVE-2026-93012",
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    "vulnrichment": {
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}

FKIE_CVE-2026-93012

Vulnerability from fkie_nvd - Published: 2026-09-21 18:17 - Updated: 2026-09-22 20:17

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/rjbs/Email-Sender/commit/9a587bc9ff4edae13239190c2651da2c76b1e72c.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/RJBS/Email-Sender-2.602/changes
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/09/21/8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Email::Sender::Transport::Sendmail"
          ],
          "packageName": "Email-Sender",
          "packageURL": "pkg:cpan/Email-Sender",
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          ],
          "programRoutines": [
            {
              "name": "Email::Sender::Transport::Sendmail::_sendmail_pipe"
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          ],
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          ]
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    }
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  ],
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  "lastModified": "2026-09-22T20:17:11.867",
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          "attackVector": "NETWORK",
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  "references": [
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      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

GHSA-J6JW-3JF9-6HC7

Vulnerability from github – Published: 2026-09-21 18:32 – Updated: 2026-09-22 21:31

Details

Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe.

On MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header.

An attacker who controls one of those header addresses runs commands as the sending process.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93012"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-21T18:17:16Z",
    "severity": "CRITICAL"
  },
  "details": "Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe.\n\nOn MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header.\n\nAn attacker who controls one of those header addresses runs commands as the sending process.",
  "id": "GHSA-j6jw-3jf9-6hc7",
  "modified": "2026-09-22T21:31:13Z",
  "published": "2026-09-21T18:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93012"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rjbs/Email-Sender/commit/9a587bc9ff4edae13239190c2651da2c76b1e72c.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/RJBS/Email-Sender-2.602/changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/21/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

UBUNTU-CVE-2026-93012 (CVE-2026-93012)

Vulnerability from osv_ubuntu – Published: 2026-09-21 18:17 – Updated: 2026-10-17 09:57 – Source website

Details

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-93012	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-93012	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT
	https://github.com/rjbs/Email-Sender/commit/9a587…	REPORT
	https://metacpan.org/release/RJBS/Email-Sender-2.…	REPORT
	http://www.openwall.com/lists/oss-security/2026/09/21/8	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "1.300021-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@1.300021-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.300018-1",
        "1.300021-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "1.300031-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@1.300031-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.300031-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "1.300034-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@1.300034-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.300031-2",
        "1.300034-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "2.500-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@2.500-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.300035-1",
        "2.500-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "2.601-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@2.601-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.600-1",
        "2.601-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "2.601-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@2.601-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.601-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libemail-sender-perl",
            "binary_version": "2.601-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libemail-sender-perl",
        "purl": "pkg:deb/ubuntu/libemail-sender-perl@2.601-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.601-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe. On MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header. An attacker who controls one of those header addresses runs commands as the sending process.",
  "id": "UBUNTU-CVE-2026-93012",
  "modified": "2026-10-17T09:57:18Z",
  "published": "2026-09-21T18:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-93012"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93012"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/43733017/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rjbs/Email-Sender/commit/9a587bc9ff4edae13239190c2651da2c76b1e72c.patch"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/RJBS/Email-Sender-2.602/changes"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/21/8"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-93012"
  ]
}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-93012 (GCVE-0-2026-93012)

FKIE_CVE-2026-93012

GHSA-J6JW-3JF9-6HC7

UBUNTU-CVE-2026-93012 (CVE-2026-93012)

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