Ente: Accepted emergency contact can bypass the recovery notice period

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104875
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 19:17:55 UTC
Updated2026-10-16 20:04:29 UTC
DescriptionEnte 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

EPSS: 0.003480000 probability, percentile 0.268310000 (date 2026-10-16)

Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ente Ente affected < 0.1.18 Not specified
CNA Ente Ghcr.io/ente/server affected < 2026.07.09 Not specified

References

ReferenceSourceLinkTags
github.com/ente/ente/commit/b3fa9f566466ac3660e276a67621130d684957e7 [email protected] github.com
github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw [email protected] github.com
github.com/ente/ente/pull/11342 [email protected] github.com
github.com/ente/ente/pull/11311 [email protected] github.com
github.com/ente/ente/commit/1fc4956f90277076559c16dedbfad10cb4d1227b [email protected] github.com
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