CVE-2026-104875 (GCVE-0-2026-104875)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:10 – Updated: 2026-10-13 19:10
VLAI
EPSS
VEX
Title
Ente: Accepted emergency contact can bypass the recovery notice period
Summary
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
7.1 (High)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/ente/ente/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/ente/ente/pull/11311 | x_refsource_MISC |
| https://github.com/ente/ente/pull/11342 | x_refsource_MISC |
| https://github.com/ente/ente/commit/1fc4956f90277… | x_refsource_MISC |
| https://github.com/ente/ente/commit/b3fa9f566466a… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ente | ente |
Affected:
< 0.1.18
|
guessed | |
| ente | ghcr.io/ente/server |
Affected:
< 2026.07.09
|
guessed |
{
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"product": "ente",
"vendor": "ente",
"versions": [
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},
{
"product": "ghcr.io/ente/server",
"vendor": "ente",
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"descriptions": [
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"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\u0027s own identifier, transition the victim\u0027s 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."
}
],
"metrics": [
{
"cvssV3_1": {
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"userInteraction": "REQUIRED",
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"version": "3.1"
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
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"name": "https://github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw",
"tags": [
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],
"url": "https://github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw"
},
{
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"tags": [
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},
{
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"tags": [
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],
"url": "https://github.com/ente/ente/pull/11342"
},
{
"name": "https://github.com/ente/ente/commit/1fc4956f90277076559c16dedbfad10cb4d1227b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/ente/ente/commit/1fc4956f90277076559c16dedbfad10cb4d1227b"
},
{
"name": "https://github.com/ente/ente/commit/b3fa9f566466ac3660e276a67621130d684957e7",
"tags": [
"x_refsource_MISC"
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"url": "https://github.com/ente/ente/commit/b3fa9f566466ac3660e276a67621130d684957e7"
}
],
"source": {
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"discovery": "UNKNOWN"
},
"title": "Ente: Accepted emergency contact can bypass the recovery notice period"
}
},
"cveMetadata": {
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"cveId": "CVE-2026-104875",
"datePublished": "2026-10-13T19:10:06.908Z",
"dateReserved": "2026-10-02T14:59:11.775Z",
"dateUpdated": "2026-10-13T19:10:06.908Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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"date": "2026-10-16",
"epss": "0.00348",
"percentile": "0.26831"
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"nvd": {
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"vendor": "ente",
"versions": [
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"status": "affected",
"version": "\u003c 0.1.18"
}
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},
{
"product": "ghcr.io/ente/server",
"vendor": "ente",
"versions": [
{
"status": "affected",
"version": "\u003c 2026.07.09"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"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\u0027s own identifier, transition the victim\u0027s 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."
}
],
"id": "CVE-2026-104875",
"lastModified": "2026-10-16T20:04:29.760",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 5.9,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2026-10-13T19:17:55.863",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/ente/ente/commit/1fc4956f90277076559c16dedbfad10cb4d1227b"
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"url": "https://github.com/ente/ente/commit/b3fa9f566466ac3660e276a67621130d684957e7"
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"url": "https://github.com/ente/ente/pull/11311"
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"url": "https://github.com/ente/ente/pull/11342"
},
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"url": "https://github.com/ente/ente/security/advisories/GHSA-2hxj-953x-c2vw"
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"value": "CWE-639"
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"source": "security-advisories@github.com",
"type": "Primary"
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}
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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