NE
Product
nextcloud/server
by NextCloud · last CVE Jun 1, 2026
189
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 7High 42Medium 125Low 15
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Add nextcloud/server to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2020-8236
6.8
1%
Nov 2
A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the…
Affected: before 19.0.2
CVE-2023-32318
6.7
0%
May 26
Nextcloud server provides a home for data
Affected: 25.0.2 before 25.0.6; 25.0.2 before 25.0.6; 26.0.0; 26.0.0
CVE-2020-8296
6.7
1%
Mar 3
Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured
Affected: before 20.0.0
CVE-2026-45282
6.5
0%
Jun 1
Nextcloud: Logged-in user bypasses share password and download restrictions on Text attachments via documentId leads to unauthorized file access
Affected: 32.0.0 before 32.0.9; 33.0.0 before 33.0.3; 27.0.0 before 27.1.11.5; 28.0.0 before 28.0.14.17; 29.0.0 before 29.0.16.16; 30.0.0 before 30.0.17.9; +3 more
CVE-2026-45279
6.5
0%
Jun 1
Nextcloud: Limited path traversal via template API if using `{lang}` in config
Affected: 31.0.0 before 31.0.14; 32.0.0 before 32.0.4; 28.0.0 before 28.0.14.15; 29.0.0 before 29.0.17.12; 30.0.0 before 30.0.17.7; 31.0.0 before 31.0.14; +1 more
CVE-2025-47793
6.5
1%
May 16
Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team
Affected: 28.0.0 before 28.0.12; 29.0.0 before 29.0.9; 29.0.0 before 29.0.9; 30.0.0 before 30.0.2; 30.0.0 before 30.0.2
CVE-2024-52523
6.5
1%
Nov 15
Nextcloud Server is a self hosted personal cloud system
Affected: 25.0.0 before 25.0.13.14; 26.0.0 before 26.0.13.10; 27.0.0 before 27.1.11.10; 28.0.0 before 28.0.12; 28.0.0 before 28.0.12; 29.0.0 before 29.0.9; +3 more
CVE-2024-52520
6.5
1%
Nov 15
Nextcloud Server is a self hosted personal cloud system
Affected: 27.0.0 before 27.1.11.8; 28.0.0 before 28.0.10; 28.0.0 before 28.0.10; 29.0.0 before 29.0.7; 29.0.0 before 29.0.7
CVE-2024-52515
6.5
1%
Nov 15
Nextcloud Server is a self hosted personal cloud system
Affected: 24.0.0 before 24.0.12.15; 25.0.0 before 25.0.13.10; 26.0.0 before 26.0.13.4; 27.0.0 before 27.1.10; 27.0.0 before 27.1.10; 28.0.0 before 28.0.6; +3 more
CVE-2023-39952
6.5
1%
Aug 10
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 22.0.0 before 22.2.10.13; 23.0.0 before 23.0.12.8; 24.0.0 before 24.0.12.4; 25.0.0 before 25.0.8; 25.0.0 before 25.0.8; 26.0.0 before 26.0.3; +3 more
CVE-2023-32319
6.5
1%
May 26
Nextcloud server is an open source personal cloud implementation
Affected: 24.0.0 before 24.0.11; 25.0.0 before 25.0.5
CVE-2023-28844
6.5
1%
Mar 31
Nextcloud server is an open source home cloud implementation
Affected: 24.0.4 before 24.0.10; 25.0.0 before 25.0.4
CVE-2023-25816
6.5
1%
Feb 25
Nextcloud is an Open Source private cloud software
Affected: 25.0.0 before 25.0.3; 25.0.0 before 25.0.3
CVE-2022-39346
6.5
1%
Nov 25
Nextcloud server is an open source personal cloud server
Affected: before 22.2.10; 23.0.0 before 23.0.7; 24.0.0 before 24.0.3
CVE-2022-39364
6.5
1%
Oct 27
Exception logging in Sharepoint app reveals clear-text connection details
Affected: before 23.0.9; 24.0.0 before 24.0.5
CVE-2022-24741
6.5
2%
Mar 9
Nextcloud server is an open source, self hosted cloud style services platform
Affected: 21.0.0 before 21.0.8; 22.0.0 before 22.2.4; 23.0.0
CVE-2021-22877
6.5
2%
Mar 3
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet
Affected: before 20.0.6
CVE-2020-8293
6.5
2%
Jan 26
A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later…
Affected: before 18.0.11; 19.0.0 before 19.0.5; 20.0.0 before 20.0.2
CVE-2020-8223
6.5
1%
Oct 5
A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves
Affected: 19.0.0
CVE-2020-8139
6.5
2%
Mar 20
A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL
Affected: 16.0.0 before 16.0.9; 17.0.0 before 17.0.4; 18.0.0 before 18.0.1
CVE-2020-8138
6.5
1%
Mar 20
A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a…
Affected: before 15.0.14; 16.0.0 before 16.0.7; 17.0.0 before 17.0.2
CVE-2019-15621
6.5
1%
Feb 4
Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as…
Affected: before 14.0.13; 15.0.0 before 15.0.9; 16.0.0 before 16.0.2
CVE-2017-0886
6.5
1%
Apr 5
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a Denial of Service attack
Affected: before 9.0.55; 10.0.0 before 10.0.2
CVE-2026-45285
6.4
0%
Jun 1
Nextcloud: Hidden Public Link creation when sharing to a Team External Member
Affected: 32.0.0 before 32.0.9; 33.0.0 before 33.0.3; 32.0.0 before 32.0.9; 33.0.0 before 33.0.3
CVE-2025-47790
6.4
0%
May 16
Nextcloud Server is a self hosted personal cloud system
Affected: 26.0.0 before 26.0.13.15; 27.0.0 before 27.1.11.15; 28.0.0 before 28.0.14.6; 29.0.0 before 29.0.15; 29.0.0 before 29.0.15; 30.0.0 before 30.0.9; +3 more
CVE-2017-0883
6.4
1%
Apr 5
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue
Affected: through 9.0.54; 10.0.2
CVE-2025-66512
6.1
0%
Dec 5
Nextcloud Server is a self hosted personal cloud system
Affected: 31.0.0 before 31.0.12; 31.0.0 before 31.0.12; 32.0.0 before 32.0.3; 32.0.0 before 32.0.3
CVE-2023-35171
6.1
1%
Jun 23
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform
Affected: 26.0.0 before 26.0.2; 26.0.0 before 26.0.2
CVE-2021-32733
6.1
1%
Jul 12
Nextcloud Text is a collaborative document editing application that uses Markdown
Affected: before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3
CVE-2020-8120
6.1
1%
Feb 4
A reflected Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1 was discovered in the svg generation
Affected: 16.0.1
CVE-2016-9466
6.1
2%
Mar 28
Nextcloud Server before 10.0.1 & ownCloud Server before 9.0.6 and 9.1.2 suffer from Reflected XSS in the Gallery application
Affected: 10.0.0 before 10.0.1
CVE-2016-9459
6.1
1%
Mar 28
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a log pollution vulnerability potentially leading to a local XSS
Affected: before 9.0.52
CVE-2026-45691
5.9
0%
Jun 1
Nextcloud: Bypass of second factor authentication on DAV endpoints
Affected: 32.0.0 before 32.0.9; 33.0.0 before 33.0.3; 29.0.0 before 29.0.16.16; 30.0.0 before 30.0.17.9; 31.0.0 before 31.0.14.5; 32.0.0 before 32.0.9; +1 more
CVE-2026-45690
5.9
0%
Jun 1
Nextcloud: Two-Factor Authentication Bypass via Pending Session Token Replay
Affected: 32.0.0 before 32.0.9; 33.0.0 before 33.0.3; 29.0.0 before 29.0.16.16; 30.0.0 before 30.0.17.9; 31.0.0 before 31.0.14.5; 32.0.0 before 32.0.9; +1 more
CVE-2024-52517
5.9
1%
Nov 15
Nextcloud Server is a self hosted personal cloud system
Affected: 25.0.0 before 25.0.13.13; 26.0.0 before 26.0.13.9; 27.0.0 before 27.1.11.9; 28.0.0 before 28.0.11; 28.0.0 before 28.0.11; 29.0.0 before 29.0.8; +3 more
CVE-2019-15612
5.9
0%
Feb 4
A bug in Nextcloud Server 15.0.2 causes pending 2FA logins to not be correctly expired when the password of the user is reset
Affected: 13.0.0 before 13.0.11; 14.0.0 before 14.0.7; 15.0.0 before 15.0.3
CVE-2018-16464
5.7
1%
Oct 30
A missing access check in Nextcloud Server prior to 14.0.0 could lead to continued access to password protected link shares when the owner had changed the password
Affected: before 14.0.0
CVE-2017-0936
5.7
1%
Mar 28
Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability
Affected: before 11.0.7; 12.0.5
CVE-2021-32801
5.5
0%
Sep 7
Nextcloud server is an open source, self hosted personal cloud
Affected: before 20.0.12; 21.0.0 before 21.0.4; 22.0.0 before 22.1.0
CVE-2025-59788
5.4
0%
Dec 4
Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23,…
Affected: 30.0.0 before 30.0.17; 31.0.0 before 31.0.10; 32.0.0 before 32.0.1; 22.0.0 before 22.2.10.33; 23.0.0 before 23.0.12.29; 24.0.0 before 24.0.12.28; +8 more
CVE-2024-52518
5.4
1%
Nov 15
Nextcloud Server is a self hosted personal cloud system
Affected: 28.0.0 before 28.0.12; 28.0.0 before 28.0.12; 29.0.0 before 29.0.9; 29.0.0 before 29.0.9; 30.0.0 before 30.0.2; 30.0.0 before 30.0.2
CVE-2024-37884
5.4
0%
Jun 14
Nextcloud Server is a self hosted personal cloud system
Affected: 25.0.0 before 25.0.13.7; 26.0.0 before 26.0.13; 26.0.0 before 26.0.13; 27.0.0 before 27.1.8; 27.0.0 before 27.1.8; 28.0.0 before 28.0.4; +1 more
CVE-2023-49791
5.4
1%
Dec 22
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 23.0.0 before 23.0.12.13; 24.0.0 before 24.0.12.9; 25.0.0 before 25.0.13.4; 26.0.0 before 26.0.9; 26.0.0 before 26.0.9; 27.0.0 before 27.1.4; +1 more
CVE-2023-48302
5.4
1%
Nov 21
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 25.0.0 before 25.0.13; 25.0.0 before 25.0.13; 26.0.0 before 26.0.8; 26.0.0 before 26.0.8; 27.0.0 before 27.1.3; 27.0.0 before 27.1.3
CVE-2023-48301
5.4
1%
Nov 21
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 25.0.0 through 25.0.13; 25.0.0 before 25.0.13; 26.0.0 through 26.0.8; 26.0.0 before 26.0.8; 27.0.0 through 27.1.3; 27.0.0 before 27.1.3
CVE-2020-8294
5.4
1%
Feb 3
A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in…
Affected: before 18.0.11; 19.0.0 before 19.0.5; 20.0.0 before 20.0.2
CVE-2020-8155
5.4
1%
May 12
An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening a malicious PDF
Affected: before 18.0.3
CVE-2019-15617
5.4
1%
Feb 4
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login
Affected: before 17.0.1
CVE-2018-3780
5.4
1%
Aug 13
A missing sanitization of search results for an autocomplete field in NextCloud Server <13.0.5 could lead to a stored XSS requiring user-interaction
Affected: >13.0.5
CVE-2017-0893
5.4
1%
May 8
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability…
Affected: before 9.0.58; 10.0.0 before 10.0.5; 11.0.0 before 11.0.3
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