CVE-2026-44073 (GCVE-0-2026-44073)

Vulnerability from cvelistv5 – Published: 2026-05-21 07:35 – Updated: 2026-05-21 12:23
VLAI
Title
seteuid failure ignored in auth modules
Summary
Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-21 12:22 UTC
CWE
  • CWE-273 - Improper Check for Dropped Privileges
References
Impacted products
Vendor Product Version
Netatalk Netatalk Affected: 1.5.0 , ≤ 4.4.2 (semver)
Unaffected: 4.5.0 (semver)
Create a notification for this product.
Date Public
2026-05-13 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44073",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-21T12:22:54.006379Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-21T12:23:53.854Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Netatalk",
          "vendor": "Netatalk",
          "versions": [
            {
              "lessThanOrEqual": "4.4.2",
              "status": "affected",
              "version": "1.5.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.5.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arjun Basnet from Securin"
        }
      ],
      "datePublic": "2026-05-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-273",
              "description": "Improper Check for Dropped Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-21T07:52:54.774Z",
        "orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "shortName": "securin"
      },
      "references": [
        {
          "name": "Netatalk Security Advisory CVE-2026-44073",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://netatalk.io/security/CVE-2026-44073"
        }
      ],
      "title": "seteuid failure ignored in auth modules"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
    "assignerShortName": "securin",
    "cveId": "CVE-2026-44073",
    "datePublished": "2026-05-21T07:35:06.589Z",
    "dateReserved": "2026-05-05T07:25:20.196Z",
    "dateUpdated": "2026-05-21T12:23:53.854Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-44073",
      "date": "2026-10-02",
      "epss": "0.00305",
      "percentile": "0.21128"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Netatalk",
                "vendor": "Netatalk",
                "versions": [
                  {
                    "lessThanOrEqual": "4.4.2",
                    "status": "affected",
                    "version": "1.5.0",
                    "versionType": "semver"
                  },
                  {
                    "status": "unaffected",
                    "version": "4.5.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions."
          },
          {
            "lang": "es",
            "value": "Los m\u00f3dulos de autenticaci\u00f3n en Netatalk 1.5.0 hasta 4.4.2 no verifican el valor de retorno de seteuid(), lo que puede permitir a un atacante remoto autenticado retener privilegios elevados bajo condiciones de error."
          }
        ],
        "id": "CVE-2026-44073",
        "lastModified": "2026-07-23T16:10:00.137",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.0,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 1.6,
              "impactScore": 3.4,
              "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-44073",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-21T12:22:54.006379Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-05-21T08:16:22.913",
        "references": [
          {
            "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
            "url": "https://netatalk.io/security/CVE-2026-44073"
          }
        ],
        "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-273"
              }
            ],
            "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-28T12:05:40+00:00",
      "cve": "CVE-2026-44073",
      "id": "CVE-2026-44073",
      "initial_release_date": "2026-05-21T07:35:06.589000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "netatalk: Netatalk: Security bypass due to ignored seteuid failure in authentication modules",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44073.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-44073",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-21T12:22:54.006379Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-21T12:23:50.387Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Netatalk",
              "vendor": "Netatalk",
              "versions": [
                {
                  "lessThanOrEqual": "4.4.2",
                  "status": "affected",
                  "version": "1.5.0",
                  "versionType": "semver"
                },
                {
                  "status": "unaffected",
                  "version": "4.5.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Arjun Basnet from Securin"
            }
          ],
          "datePublic": "2026-05-13T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 4,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-273",
                  "description": "Improper Check for Dropped Privileges",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-21T07:52:54.774Z",
            "orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
            "shortName": "securin"
          },
          "references": [
            {
              "name": "Netatalk Security Advisory CVE-2026-44073",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://netatalk.io/security/CVE-2026-44073"
            }
          ],
          "title": "seteuid failure ignored in auth modules"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "assignerShortName": "securin",
        "cveId": "CVE-2026-44073",
        "datePublished": "2026-05-21T07:35:06.589Z",
        "dateReserved": "2026-05-05T07:25:20.196Z",
        "dateUpdated": "2026-05-21T12:23:53.854Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

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.


Loading…