Description
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. These long names are then loaded into memory on usage, resulting in impacted performance. Versions 22.2.7 and 23.0.4 contain a fix for this issue. There are currently no known workarounds available.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7cwm-qph5-4h5w
Patch, Third Party Advisory x_refsource_misc
https://github.com/nextcloud/server/pull/31658
Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1153138
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202208-17
Scores
CVSS v3
4.3
EPSS
0.0087
EPSS Percentile
75.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
CWE-20
Status
published
Products (1)
nextcloud/nextcloud_server
< 22.2.7
Published
May 31, 2022
Tracked Since
Feb 18, 2026