FKIE_CVE-2026-41113

Vulnerability from fkie_nvd - Published: 2026-04-16 22:16 - Updated: 2026-06-17 10:46
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
sagredo qmail before 2026.04.07 allows tls_quit remote code execution because of popen in notlshosts_auto in qmail-remote.c.
References
cve@mitre.orghttps://blog.calif.io/p/we-asked-claude-to-audit-sagredos
cve@mitre.orghttps://github.com/califio/publications/tree/main/MADBugs/qmail
cve@mitre.orghttps://github.com/sagredo-dev/qmail/commit/749f607f6885e3d01b36f2647d7a1db88f1ef741
cve@mitre.orghttps://github.com/sagredo-dev/qmail/pull/42
cve@mitre.orghttps://github.com/sagredo-dev/qmail/releases/tag/v2026.04.07
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/04/18/5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "qmail",
          "vendor": "sagredo",
          "versions": [
            {
              "lessThan": "2026.04.07",
              "status": "affected",
              "version": "2024.10.26",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "sagredo qmail before 2026.04.07 allows tls_quit remote code execution because of popen in notlshosts_auto in qmail-remote.c."
    }
  ],
  "id": "CVE-2026-41113",
  "lastModified": "2026-06-17T10:46:11.393",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-41113",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-17T13:35:30.308973Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-16T22:16:39.103",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://blog.calif.io/p/we-asked-claude-to-audit-sagredos"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/califio/publications/tree/main/MADBugs/qmail"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/sagredo-dev/qmail/commit/749f607f6885e3d01b36f2647d7a1db88f1ef741"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/sagredo-dev/qmail/pull/42"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/sagredo-dev/qmail/releases/tag/v2026.04.07"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/18/5"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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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

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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.
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  • 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.