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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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-49792
9.8
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-2023-48306
9.8
1%
Nov 21
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 22.0.0 before 22.2.10.16; 23.0.0 before 23.0.12.11; 24.0.0 before 24.0.12.7; 25.0.0 before 25.0.11; 25.0.0 before 25.0.11; 26.0.0 before 26.0.6; +3 more
CVE-2021-32802
9.8
3%
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-2021-32726
9.8
2%
Jul 12
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3
CVE-2021-22915
9.8
2%
Jun 11
Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations
Affected: before 19.0.11; 20.0.0 before 20.0.10; 21.0.0 before 21.0.2
CVE-2023-35172
9.1
1%
Jun 23
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform
Affected: 21.0.0 before 21.0.9.12; 22.0.0 before 22.2.10.12; 23.0.0 before 23.0.12.7; 24.0.0 before 24.0.12.2; 25.0.0 before 25.0.7; 25.0.0 before 25.0.7; +2 more
CVE-2021-32654
9.1
2%
Jun 1
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.11; 20.0.0 before 20.0.10; 21.0.0 before 21.0.2
CVE-2023-45151
8.8
1%
Oct 16
Nextcloud server is an open source home cloud platform
Affected: 25.0.0 before 25.0.8; 25.0.0 before 25.0.8; 26.0.0 before 26.0.3; 26.0.0 before 26.0.3; 27.0.0; 27.0.0
CVE-2023-35928
8.8
1%
Jun 23
Nextcloud Server is a space for data storage on Nextcloud, a self-hosted productivity playform
Affected: 19.0.0 before 19.0.13.9; 20.0.0 before 20.0.14.14; 21.0.0 before 21.0.9.12; 22.0.0 before 22.2.10.12; 23.0.0 before 23.0.12.7; 24.0.0 before 24.0.12.2; +4 more
CVE-2023-30539
8.8
1%
Apr 17
Nextcloud is a personal home server system
Affected: 21.0.0 before 21.0.9.11; 22.0.0 before 22.2.10.11; 23.0.0 before 23.0.12.6; 24.0.0 before 24.0.11; 24.0.0 before 24.0.11; 25.0.0 before 25.0.5; +1 more
CVE-2023-28833
8.8
1%
Mar 30
Nextcloud server is an open source home cloud implementation
Affected: 23.0.0 before 23.0.14; 24.0.0 before 24.0.10; 24.0.0 before 24.0.10; 25.0.0 before 25.0.4; 25.0.0 before 25.0.4
CVE-2023-28643
8.8
1%
Mar 30
Nextcloud server is an open source home cloud implementation
Affected: 24.0.0 before 24.0.9; 24.0.0 before 24.0.9; 25.0.0 before 25.0.3; 25.0.0 before 25.0.3
CVE-2023-26482
8.8
4%
Mar 30
Nextcloud server is an open source home cloud implementation
Affected: 18.0.0 before 20.0.14.12; 21.0.0 before 21.0.9.10; 22.0.0 before 22.2.10.10; 23.0.0 before 23.0.12.5; 24.0.0 before 24.0.10; 24.0.0 before 24.0.10; +2 more
CVE-2021-32688
8.8
2%
Jul 12
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3
CVE-2021-32679
8.8
1%
Jul 12
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3
CVE-2018-3775
8.8
1%
Aug 12
Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication
Affected: before 12.0.3
CVE-2021-32656
8.6
2%
Jun 1
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.11; 20.0.0 before 20.0.10; 21.0.0 before 21.0.2
CVE-2024-52519
8.2
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-2026-45281
8.1
0%
Jun 1
Nextcloud: Cross-Account Calendar Takeover via Unauthorized Group-Member-Set Update
Affected: 32.0.0 before 32.0.9; 33.0.0 before 33.0.3; 21.0.0 before 21.0.9.23; 22.0.0 before 22.2.10.39; 23.0.0 before 23.0.12.35; 24.0.0 before 24.0.12.34; +9 more
CVE-2024-37882
8.1
1%
Jun 14
Nextcloud Server is a self hosted personal cloud system
Affected: 26.0.0 before 26.0.13; 27.0.0 before 27.1.8; 28.0.0 before 28.0.4; 23.0.0 before 23.0.12.17; 24.0.0 before 24.0.12.13; 25.0.0 before 25.0.13.8; +3 more
CVE-2023-35927
8.1
1%
Jun 23
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform
Affected: 16.0.0 before 19.0.13.9; 20.0.0 before 20.0.14.14; 21.0.0 before 21.0.9.12; 22.0.0 before 22.2.10.12; 23.0.0 before 23.0.12.7; 24.0.0 before 24.0.12.2; +4 more
CVE-2023-25817
8.1
1%
Mar 27
Nextcloud server is an open source, personal cloud implementation
Affected: 24.0.0 before 24.0.9
CVE-2021-41177
8.1
2%
Oct 25
Nextcloud is an open-source, self-hosted productivity platform
Affected: before 20.0.13; 21.0.0 before 21.0.5; 22.0.0 before 22.2.0
CVE-2021-32800
8.1
2%
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-2020-8259
8.1
1%
Nov 16
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys
Affected: before 20.0.0
CVE-2020-8121
8.1
1%
Feb 4
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer
Affected: before 13.0.9; 14.0.0 before 14.0.5; 14.0.6 before 15.0.0
CVE-2018-16466
8.1
1%
Oct 30
Improper revalidation of permissions in Nextcloud Server prior to 14.0.0, 13.0.6 and 12.0.11 lead to not accepting access restrictions by acess tokens
Affected: before 12.0.11; 13.0.0 before 13.0.6; 14.0.0; 14.0.0; 14.0.0; 14.0.0; +2 more
CVE-2018-3761
8.1
2%
Jul 5
Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint
Affected: before 12.0.8; 13.0.0 before 13.0.3
CVE-2016-9463
8.1
4%
Mar 28
Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass
Affected: before 9.0.54; 10.0.0 before 10.0.1
CVE-2019-15613
8.0
1%
Feb 4
A bug in Nextcloud Server 17.0.1 causes the workflow rules to depend their behaviour on the file extension when checking file mimetypes
Affected: before 15.0.14; 16.0.0 before 16.0.7; 17.0.0 before 17.0.2
CVE-2023-39963
7.8
0%
Aug 10
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 20.0.0 before 20.0.14.15; 21.0.0 before 21.0.9.13; 22.0.0 before 22.2.10.14; 23.0.0 before 23.0.12.9; 24.0.0 before 24.0.12.5; 25.0.0 before 25.0.9; +5 more
CVE-2023-25820
7.8
0%
Mar 22
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server…
Affected: 21.0.0 before 21.0.9; 22.2.0 before 22.2.10.10; 23.0.0 before 23.0.12.5; 24.0.0 before 24.0.10; 24.0.0 before 24.0.10; 25.0.0 before 25.0.4; +1 more
CVE-2023-39962
7.7
1%
Aug 10
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 19.0.0 before 19.0.13.10; 20.0.0 before 20.0.14.15; 21.0.0 before 21.0.9.13; 22.0.0 before 22.2.10.14; 23.0.0 before 23.0.12.9; 24.0.0 before 24.0.12.5; +6 more
CVE-2020-8154
7.7
2%
May 12
An Insecure direct object reference vulnerability in Nextcloud Server 18.0.2 allowed an attacker to remote wipe devices of other users when sending a malicious request directly to…
Affected: before 17.0.5; 18.0.0 before 18.0.3
CVE-2024-52525
7.5
0%
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-2024-37313
7.5
0%
Jun 14
Nextcloud server is a self hosted personal cloud system
Affected: 21.0.0 before 21.0.9.17; 22.0.0 before 22.2.10.22; 23.0.0 before 23.0.12.17; 24.0.0 before 24.0.12.13; 25.0.0 before 25.0.13.8; 26.0.0 before 26.0.13; +5 more
CVE-2023-39960
7.5
1%
Oct 13
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 22.0.0 before 22.2.10.14; 23.0.0 before 23.0.12.9; 24.0.0 before 24.0.12.5; 25.0.0 before 25.0.9; 25.0.0 before 25.0.9; 26.0.0 before 26.0.4; +1 more
CVE-2023-32320
7.5
1%
Jun 22
Nextcloud Server is a data storage system for Nextcloud, a self-hosted productivity platform
Affected: 21.0.0 before 21.0.9.12; 22.0.0 before 22.2.10.12; 23.0.0 before 23.0.12.7; 24.0.0 before 24.0.12.2; 25.0.0 before 25.0.7; 25.0.0 before 25.0.7; +2 more
CVE-2023-28847
7.5
1%
Apr 25
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform
Affected: 23.0.0 before 23.0.12.6; 24.0.0 before 24.0.11; 24.0.0 before 24.0.11; 25.0.0 before 25.0.5; 25.0.0 before 25.0.5
CVE-2023-28835
7.5
1%
Mar 30
Nextcloud server is an open source home cloud implementation
Affected: 23.0.0 before 23.0.14; 24.0.0 before 24.0.10; 24.0.0 before 24.0.10; 25.0.0 before 25.0.4; 25.0.0 before 25.0.4
CVE-2023-28644
7.5
1%
Mar 30
Nextcloud server is an open source home cloud implementation
Affected: 25.0.0 before 25.0.3
CVE-2023-25821
7.5
1%
Feb 25
Nextcloud is an Open Source private cloud software
Affected: 24.0.4 before 24.0.7; 24.0.4 before 24.0.7; 25.0.0; 25.0.0
CVE-2023-25579
7.5
1%
Feb 22
Nextcloud server is a self hosted home cloud product
Affected: before 23.0.12; 20.0.0 before 20.0.14; 21.0.0 before 21.0.9; 22.2.0 before 22.2.10; 23.0.0 before 23.0.12; 24.0.0 before 24.0.8; +3 more
CVE-2022-36074
7.5
1%
Sep 15
Nextcloud server is an open source personal cloud product
Affected: before 23.0.7; 24.0.0 before 24.0.3
CVE-2021-32705
7.5
2%
Jul 12
Nextcloud Server is a Nextcloud package that handles data storage
Affected: before 19.0.13; 20.0.0 before 20.0.11; 21.0.0 before 21.0.3
CVE-2020-8295
7.5
2%
Jan 26
A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user
Affected: before 20.0.0
CVE-2020-8183
7.5
2%
Nov 2
A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call
Affected: before 18.0.6; 19.0.0 before 19.0.1
CVE-2023-48239
7.1
1%
Nov 21
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
Affected: 20.0.0 before 20.0.14.16; 21.0.0 before 21.0.9.13; 22.0.0 before 22.2.10.15; 23.0.0 before 23.0.12.12; 24.0.0 before 24.0.12.8; 25.0.0 before 25.0.13; +5 more
CVE-2023-25818
7.1
1%
Mar 27
Nextcloud server is an open source, personal cloud implementation
Affected: 21.0.0 before 21.0.9.10; 22.0.0 before 22.2.10.10; 23.0.0 before 23.0.12.5; 24.0.0 before 24.0.10; 24.0.0 before 24.0.10; 25.0.0 before 25.0.4; +1 more
CVE-2026-45810
6.8
0%
Jun 1
Nextcloud: Propfind requests for file comments allowed to load comments for other files
Affected: 31.0.0 before 31.0.12; 32.0.0 before 32.0.3; 21.0.0 before 21.0.9.20; 22.0.0 before 22.2.10.35; 23.0.0 before 23.0.12.31; 24.0.0 before 24.0.12.30; +8 more
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