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CVE-2026-104875

Full vulnerability record from the local CVENow database.

Description

Ente provides end-to-end encrypted cloud services and security tools. Prior to server image 2026.07.09, the POST /emergency-contacts/approve-recovery endpoint authorized approval using a client-supplied userID and updated an emergency recovery session using only its client-supplied recovery-session UUID. An accepted emergency contact could submit the contact's own identifier, transition the victim's session from WAITING to READY, clear wait_till, retrieve recovery information, and continue account recovery before the owner-configured notice period expired. Exploitation of the approval bypass required the victim to have previously added and accepted the attacker as an emergency contact, and it did not create recovery rights for an arbitrary account. Separately, the same insufficiently scoped update pattern affected the reject and stop recovery transitions, allowing a user who knew another recovery-session UUID to potentially cancel a session to which the user was not a party. This issue is fixed in server image 2026.07.09.

Severity
HIGH
CVSS score
7.1 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-13 19:17:55.863000
Last modified
2026-10-29 15:17:14.950000
View original CVE JSON
{
  "id": "CVE-2026-104875",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-13T19:17:55.863",
  "lastModified": "2026-10-29T15:17:14.950",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ente provides end-to-end encrypted cloud services and security tools. Prior to server image 2026.07.09, the POST /emergency-contacts/approve-recovery endpoint authorized approval using a client-supplied userID and updated an emergency recovery session using only its client-supplied recovery-session UUID. An accepted emergency contact could submit the contact's own identifier, transition the victim's session from WAITING to READY, clear wait_till, retrieve recovery information, and continue account recovery before the owner-configured notice period expired. Exploitation of the approval bypass required the victim to have previously added and accepted the attacker as an emergency contact, and it did not create recovery rights for an arbitrary account. Separately, the same insufficiently scoped update pattern affected the reject and stop recovery transitions, allowing a user who knew another recovery-session UUID to potentially cancel a session to which the user was not a party. This issue is fixed in server image 2026.07.09."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "ente",
          "product": "ente",
          "versions": [
            {
              "version": "< 0.1.18",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "ente",
          "product": "ghcr.io/ente/server",
          "versions": [
            {
              "version": "< 2026.07.09",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-29T14:45:22.369565Z",
          "id": "CVE-2026-104875",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/ente/ente/commit/1fc4956f90277076559c16dedbfad10cb4d1227b",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/ente/ente/commit/b3fa9f566466ac3660e276a67621130d684957e7",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/ente/ente/pull/11311",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/ente/ente/pull/11342",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}