CVE-2025-62175 (GCVE-0-2025-62175)

Vulnerability from cvelistv5 – Published: 2025-10-13 20:59 – Updated: 2025-10-14 13:58
VLAI
Title
Mastodon streaming API fails to disconnect disabled and suspended users
Summary
Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled or suspended accounts to continue receiving real-time updates through existing streaming connections and to establish new streaming connections, even though they cannot interact with other API endpoints. This undermines moderation actions, as administrators expect disabled or suspended accounts to be fully disconnected from the service. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-14 13:56 UTC
CWE
  • CWE-273 - Improper Check for Dropped Privileges
  • CWE-274 - Improper Handling of Insufficient Privileges
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7760 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
mastodon mastodon Affected: >= 4.4.0-beta.1, < 4.4.6
Affected: >= 4.3.0-beta.1, < 4.3.14
Affected: < 4.2.27
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-62175",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-14T13:56:52.325736Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-14T13:58:02.806Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mastodon",
          "vendor": "mastodon",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.4.0-beta.1, \u003c 4.4.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.3.0-beta.1, \u003c 4.3.14"
            },
            {
              "status": "affected",
              "version": "\u003c 4.2.27"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled or suspended accounts to continue receiving real-time updates through existing streaming connections and to establish new streaming connections, even though they cannot interact with other API endpoints. This undermines moderation actions, as administrators expect disabled or suspended accounts to be fully disconnected from the service. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-273",
              "description": "CWE-273: Improper Check for Dropped Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-274",
              "description": "CWE-274: Improper Handling of Insufficient Privileges",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-13T21:01:19.337Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh"
        },
        {
          "name": "https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17"
        }
      ],
      "source": {
        "advisory": "GHSA-r2fh-jr9c-9pxh",
        "discovery": "UNKNOWN"
      },
      "title": "Mastodon streaming API fails to disconnect disabled and suspended users"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-62175",
    "datePublished": "2025-10-13T20:59:31.260Z",
    "dateReserved": "2025-10-07T16:12:03.426Z",
    "dateUpdated": "2025-10-14T13:58:02.806Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-62175",
      "date": "2026-10-25",
      "epss": "0.00229",
      "percentile": "0.13594"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "mastodon",
                "vendor": "mastodon",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 4.4.0-beta.1, \u003c 4.4.6"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.3.0-beta.1, \u003c 4.3.14"
                  },
                  {
                    "status": "affected",
                    "version": "\u003c 4.2.27"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5AFD1281-DEE1-421D-B62B-8D9727428763",
                    "versionEndExcluding": "4.2.27",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CE867F92-59FF-4768-974B-D4BDF71B1FFA",
                    "versionEndExcluding": "4.3.14",
                    "versionStartIncluding": "4.3.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6F6F2EB3-8C86-417E-8D7B-499438B63D61",
                    "versionEndExcluding": "4.4.6",
                    "versionStartIncluding": "4.4.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled or suspended accounts to continue receiving real-time updates through existing streaming connections and to establish new streaming connections, even though they cannot interact with other API endpoints. This undermines moderation actions, as administrators expect disabled or suspended accounts to be fully disconnected from the service. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist."
          },
          {
            "lang": "es",
            "value": "Mastodon es un servidor de red social gratuito y de c\u00f3digo abierto basado en ActivityPub. En versiones anteriores a la 4.4.6, 4.3.14 y 4.2.27, deshabilitar o suspender una cuenta de usuario no desconecta la cuenta de la API de streaming. Esto permite que las cuentas deshabilitadas o suspendidas contin\u00faen recibiendo actualizaciones en tiempo real a trav\u00e9s de conexiones de streaming existentes y establezcan nuevas conexiones de streaming, a pesar de que no pueden interactuar con otros puntos finales de la API. Esto socava las acciones de moderaci\u00f3n, ya que los administradores esperan que las cuentas deshabilitadas o suspendidas est\u00e9n completamente desconectadas del servicio. Este problema ha sido parcheado en las versiones 4.4.6, 4.3.14 y 4.2.27. No existen soluciones alternativas conocidas."
          }
        ],
        "id": "CVE-2025-62175",
        "lastModified": "2026-10-19T16:10:00.260",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-62175",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-14T13:56:52.325736Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-10-13T21:15:34.930",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-273"
              },
              {
                "lang": "en",
                "value": "CWE-274"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-10-14T21:49:54+00:00",
      "cve": "CVE-2025-62175",
      "id": "CVE-2025-62175",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mastodon streaming API fails to disconnect disabled and suspended users",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-62175.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-62175",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-14T13:56:52.325736Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-14T13:57:23.812Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "mastodon",
              "vendor": "mastodon",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003e= 4.4.0-beta.1, \u003c 4.4.6"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.3.0-beta.1, \u003c 4.3.14"
                },
                {
                  "status": "affected",
                  "version": "\u003c 4.2.27"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled or suspended accounts to continue receiving real-time updates through existing streaming connections and to establish new streaming connections, even though they cannot interact with other API endpoints. This undermines moderation actions, as administrators expect disabled or suspended accounts to be fully disconnected from the service. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-273",
                  "description": "CWE-273: Improper Check for Dropped Privileges",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-274",
                  "description": "CWE-274: Improper Handling of Insufficient Privileges",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-10-13T21:01:19.337Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-r2fh-jr9c-9pxh"
            },
            {
              "name": "https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/commit/2971ac9863b91372e68ac152caf6f4dbff511d17"
            }
          ],
          "source": {
            "advisory": "GHSA-r2fh-jr9c-9pxh",
            "discovery": "UNKNOWN"
          },
          "title": "Mastodon streaming API fails to disconnect disabled and suspended users"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2025-62175",
        "datePublished": "2025-10-13T20:59:31.260Z",
        "dateReserved": "2025-10-07T16:12:03.426Z",
        "dateUpdated": "2025-10-13T21:01:19.337Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.