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3 vulnerabilities found for Files Confidential by Nextcloud
CVE-2026-77173 (GCVE-0-2026-77173)
Vulnerability from nvd – Published: 2026-10-27 16:15 – Updated: 2026-11-04 20:25
VLAI
EPSS
VEX
Summary
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 19:32 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nextcloud | Files Confidential |
Affected:
3.3.0 , ≤ 5.0.0
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77173",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-04T19:32:07.896827Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:25:17.386Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Files Confidential",
"vendor": "Nextcloud",
"versions": [
{
"lessThanOrEqual": "5.0.0",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "XavLimSG (xavlimsg)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential."
}
],
"metrics": [
{
"cvssV3_0": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 Improper Access Control - Generic",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-27T16:15:34.777Z",
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone"
},
"references": [
{
"url": "https://hackerone.com/reports/3682163"
}
],
"workarounds": [
{
"lang": "en",
"value": "Change config setting: Add # to forbidden_filename_characters and rename all affected files"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"cveId": "CVE-2026-77173",
"datePublished": "2026-10-27T16:15:34.777Z",
"dateReserved": "2026-08-20T15:00:00.607Z",
"dateUpdated": "2026-11-04T20:25:17.386Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-77173 (GCVE-0-2026-77173)
Vulnerability from cvelistv5 – Published: 2026-10-27 16:15 – Updated: 2026-11-04 20:25
VLAI
EPSS
VEX
Summary
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 19:32 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nextcloud | Files Confidential |
Affected:
3.3.0 , ≤ 5.0.0
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77173",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-04T19:32:07.896827Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-04T20:25:17.386Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Files Confidential",
"vendor": "Nextcloud",
"versions": [
{
"lessThanOrEqual": "5.0.0",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "XavLimSG (xavlimsg)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential."
}
],
"metrics": [
{
"cvssV3_0": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 Improper Access Control - Generic",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-27T16:15:34.777Z",
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone"
},
"references": [
{
"url": "https://hackerone.com/reports/3682163"
}
],
"workarounds": [
{
"lang": "en",
"value": "Change config setting: Add # to forbidden_filename_characters and rename all affected files"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"cveId": "CVE-2026-77173",
"datePublished": "2026-10-27T16:15:34.777Z",
"dateReserved": "2026-08-20T15:00:00.607Z",
"dateUpdated": "2026-11-04T20:25:17.386Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CERTFR-2026-AVI-1392
Vulnerability from certfr_avis - Published: 2026-10-27 - Updated: 2026-10-27
De multiples vulnérabilités ont été découvertes dans les produits Nextcloud. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Nextcloud | Server | Server versions 28.0.x antérieures à 28.0.15 pour nextcloud | ||
| Nextcloud | Server | Server versions 29.0.x antérieures à 29.0.16.19 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 24.0.x antérieures à 24.0.13 pour nextcloud | ||
| Nextcloud | Server | Server versions 34.0.x antérieures à 34.0.2 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 32.0.x antérieures à 32.0.13 pour nextcloud | ||
| Nextcloud | Server | Server versions 29.0.x antérieures à 29.0.17 pour nextcloud | ||
| Nextcloud | Server | Server versions 33.0.x antérieures à 33.0.7 pour nextcloud enterprise | ||
| Nextcloud | Files Confidential | Files Confidential versions postérieures à 4.0.0 et antérieures à 4.1.1 pour nextcloud | ||
| Nextcloud | Server | Server versions 24.0.x antérieures à 24.0.12.37 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 34.0.x antérieures à 34.0.2 pour nextcloud | ||
| Nextcloud | Server | Server versions 26.0.x antérieures à 26.0.13.29 pour nextcloud entreprise | ||
| Nextcloud | Richdocuments | Richdocuments versions 11.0.x antérieures à 11.0.1 pour nextcloud | ||
| Nextcloud | Server | Server versions 27.x antérieures à 27.1.12 pour nextcloud | ||
| Nextcloud | Server | Server versions 27.x antérieures à 27.1.11.29 pour nextcloud entreprise | ||
| Nextcloud | Richdocuments | Richdocuments versions postérieures à 10.0.0 et antérieures à 10.2.1 pour nextcloud | ||
| Nextcloud | Server | Server versions 32.0.x antérieures à 32.0.13 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 33.0.x antérieures à 33.0.7 pour nextcloud | ||
| Nextcloud | Server | Server versions 31.0.x antérieures à 31.0.14.8 pour nextcloud entreprise | ||
| Nextcloud | Files Confidential | Files Confidential versions postérieures à 5.0.0 et antérieures à 5.1.0 pour nextcloud | ||
| Nextcloud | Richdocuments | Richdocuments versions postérieures à 9.0.0 et antérieures à 9.1.1 pour nextcloud | ||
| Nextcloud | Server | Server versions 22.x antérieures à 22.2.11 pour nextcloud | ||
| Nextcloud | Server | Server versions 23.0.x antérieures à 23.0.12.38 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 23.0.x antérieures à 23.0.13 pour nextcloud | ||
| Nextcloud | Server | Server versions 25.0.x antérieures à 25.0.13.32 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 30.0.x antérieures à 30.0.17.12 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 26.0.x antérieures à 26.0.14 pour nextcloud | ||
| Nextcloud | Server | Server versions 22.x antérieures à 22.2.10.42 pour nextcloud entreprise | ||
| Nextcloud | Server | Server versions 30.0.x antérieures à 30.0.18 pour nextcloud | ||
| Nextcloud | Collectives | Collectives versions postérieures à 4.0.0 et antérieures à 4.4.0 pour nextcloud | ||
| Nextcloud | Server | Server versions 25.0.x antérieures à 25.0.14 pour nextcloud | ||
| Nextcloud | Files Confidential | Files Confidential versions 3.3.x antérieures à 3.3.1 pour nextcloud | ||
| Nextcloud | Server | Server versions 31.0.x antérieures à 31.0.15 pour nextcloud | ||
| Nextcloud | Server | Server versions 28.0.x antérieures à 28.0.14.20 pour nextcloud entreprise |
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Server versions 28.0.x ant\u00e9rieures \u00e0 28.0.15 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 29.0.x ant\u00e9rieures \u00e0 29.0.16.19 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 24.0.x ant\u00e9rieures \u00e0 24.0.13 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 34.0.x ant\u00e9rieures \u00e0 34.0.2 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 32.0.x ant\u00e9rieures \u00e0 32.0.13 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 29.0.x ant\u00e9rieures \u00e0 29.0.17 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 33.0.x ant\u00e9rieures \u00e0 33.0.7 pour nextcloud enterprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Files Confidential versions post\u00e9rieures \u00e0 4.0.0 et ant\u00e9rieures \u00e0 4.1.1 pour nextcloud",
"product": {
"name": "Files Confidential",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 24.0.x ant\u00e9rieures \u00e0 24.0.12.37 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 34.0.x ant\u00e9rieures \u00e0 34.0.2 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 26.0.x ant\u00e9rieures \u00e0 26.0.13.29 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Richdocuments versions 11.0.x ant\u00e9rieures \u00e0 11.0.1 pour nextcloud",
"product": {
"name": "Richdocuments",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 27.x ant\u00e9rieures \u00e0 27.1.12 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 27.x ant\u00e9rieures \u00e0 27.1.11.29 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Richdocuments versions post\u00e9rieures \u00e0 10.0.0 et ant\u00e9rieures \u00e0 10.2.1 pour nextcloud",
"product": {
"name": "Richdocuments",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 32.0.x ant\u00e9rieures \u00e0 32.0.13 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 33.0.x ant\u00e9rieures \u00e0 33.0.7 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 31.0.x ant\u00e9rieures \u00e0 31.0.14.8 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Files Confidential versions post\u00e9rieures \u00e0 5.0.0 et ant\u00e9rieures \u00e0 5.1.0 pour nextcloud",
"product": {
"name": "Files Confidential",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Richdocuments versions post\u00e9rieures \u00e0 9.0.0 et ant\u00e9rieures \u00e0 9.1.1 pour nextcloud",
"product": {
"name": "Richdocuments",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 22.x ant\u00e9rieures \u00e0 22.2.11 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 23.0.x ant\u00e9rieures \u00e0 23.0.12.38 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 23.0.x ant\u00e9rieures \u00e0 23.0.13 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 25.0.x ant\u00e9rieures \u00e0 25.0.13.32 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 30.0.x ant\u00e9rieures \u00e0 30.0.17.12 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 26.0.x ant\u00e9rieures \u00e0 26.0.14 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 22.x ant\u00e9rieures \u00e0 22.2.10.42 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 30.0.x ant\u00e9rieures \u00e0 30.0.18 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Collectives versions post\u00e9rieures \u00e0 4.0.0 et ant\u00e9rieures \u00e0 4.4.0 pour nextcloud",
"product": {
"name": "Collectives",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 25.0.x ant\u00e9rieures \u00e0 25.0.14 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Files Confidential versions 3.3.x ant\u00e9rieures \u00e0 3.3.1 pour nextcloud",
"product": {
"name": "Files Confidential",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 31.0.x ant\u00e9rieures \u00e0 31.0.15 pour nextcloud",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
},
{
"description": "Server versions 28.0.x ant\u00e9rieures \u00e0 28.0.14.20 pour nextcloud entreprise",
"product": {
"name": "Server",
"vendor": {
"name": "Nextcloud",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-67400",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-67400"
},
{
"name": "CVE-2026-77173",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77173"
},
{
"name": "CVE-2026-77167",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77167"
},
{
"name": "CVE-2026-77171",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77171"
},
{
"name": "CVE-2026-77172",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77172"
},
{
"name": "CVE-2026-114601",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114601"
}
],
"initial_release_date": "2026-10-27T00:00:00",
"last_revision_date": "2026-10-27T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1392",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-10-27T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Nextcloud. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Nextcloud",
"vendor_advisories": [
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-p9qq-6vpv-x7wj",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p9qq-6vpv-x7wj"
},
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-w7pp-8m7c-555c",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w7pp-8m7c-555c"
},
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-5572-968j-v7g5",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5572-968j-v7g5"
},
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-qwm4-h3xh-gmvc",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qwm4-h3xh-gmvc"
},
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-x4hv-m8g6-5cj4",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4hv-m8g6-5cj4"
},
{
"published_at": "2026-10-27",
"title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-6m4h-j3wr-v388",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6m4h-j3wr-v388"
}
]
}