Vendor
Nextcloud vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 29 vulnerabilities in Nextcloud: 0 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-82982, was published on 18 September 2026. 6 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 4
- Critical, all time
- 1
- Exploited in the wild
- 0
About Nextcloud
A developer of open-source software for self-hosted file synchronization, sharing, and content collaboration.
Nextcloud technologies
Latest Nextcloud vulnerabilities
- CVE-2026-82982: Nextcloud Approval app freshness check bypass in approve/reject endpointmediumCVSS 4.3EPSS 0.3%
- CVE-2026-77170: Nextcloud Deck authorization bypass in config APImediumCVSS 4.3EPSS 0.3%
- CVE-2026-77169: Nextcloud Team Folders authorization bypass in workspace appmediumCVSS 6.5EPSS 0.5%
- CVE-2026-77164: Nextcloud Circles remote-instance signature verification SSRFmediumCVSS 6.2EPSS 0.2%
- CVE-2026-45810: Nextcloud Server authorization bypass in file commentsmediumCVSS 6.8
- CVE-2026-45722: Nextcloud Tables SQL injection in ORDER BY statementhighCVSS 7.1
- CVE-2026-45691: Nextcloud Server 2FA bypass in DAV endpoints via session cookie reusemediumCVSS 5.9
- CVE-2026-45690: Nextcloud Server 2FA bypass via session token replaymediumCVSS 5.9
- CVE-2026-45545: Nextcloud Tables SQL injection in Column Type parameterhighCVSS 8.2
- CVE-2026-45544: Nextcloud Tables information disclosure in ViewService filter criteriamediumCVSS 4.3
- CVE-2026-45543: Nextcloud Forms unauthorized file access after collaborator removalmediumCVSS 5.3
- CVE-2026-45286: Nextcloud Calendar user enumeration via attendee suggestion endpointmediumCVSS 4.3
- CVE-2026-45285: Nextcloud Server hidden public link creation in Teams sharingmediumCVSS 6.4
- CVE-2026-45284: Nextcloud User OIDC improper access control for deleted LDAP usersmediumCVSS 4.6
- CVE-2026-45283: Nextcloud Server improper authentication in files_lock appmediumCVSS 6.3
- CVE-2026-45282: Nextcloud Server access control bypass in Text attachmentsmediumCVSS 6.5
- CVE-2026-45281: Nextcloud Server authorization bypass in calendar delegationhighCVSS 8.1
- CVE-2026-45278: Nextcloud User OIDC open redirect in login flowlowCVSS 3.3
- CVE-2026-45277: Nextcloud Approval app information disclosure via fileId parameterlowCVSS 3.3
- CVE-2026-45275: Nextcloud Approval app privilege escalation in file sharingmediumCVSS 6.5
- CVE-2026-45267: Nextcloud Forms missing authorization in form submissionsmediumCVSS 6.5
- CVE-2026-45264: Nextcloud Team Folders improper access control in file renamingmediumCVSS 4.3
- CVE-2026-45159: Nextcloud End-to-End Encryption authorization bypass in file droplowCVSS 3.5
- CVE-2026-45156: Nextcloud User OIDC authentication bypass via missing signature verificationhighCVSS 8.1
- CVE-2026-45154: Nextcloud Collectives improper access control in trash binlowCVSS 2.6
Most severe Nextcloud vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-23696: Windmill Labs Windmill SQL injection in folder ownership managementcriticalCVSS 9.9EPSS 5.1%
- CVE-2026-45545: Nextcloud Tables SQL injection in Column Type parameterhighCVSS 8.2
- CVE-2026-45281: Nextcloud Server authorization bypass in calendar delegationhighCVSS 8.1
- CVE-2026-45156: Nextcloud User OIDC authentication bypass via missing signature verificationhighCVSS 8.1
- CVE-2026-45722: Nextcloud Tables SQL injection in ORDER BY statementhighCVSS 7.1
- CVE-2026-45810: Nextcloud Server authorization bypass in file commentsmediumCVSS 6.8
- CVE-2026-77169: Nextcloud Team Folders authorization bypass in workspace appmediumCVSS 6.5EPSS 0.5%
- CVE-2026-45282: Nextcloud Server access control bypass in Text attachmentsmediumCVSS 6.5
- CVE-2026-45275: Nextcloud Approval app privilege escalation in file sharingmediumCVSS 6.5
- CVE-2026-45267: Nextcloud Forms missing authorization in form submissionsmediumCVSS 6.5
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 4 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/nextcloud.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Nextcloud vulnerabilities", https://junglewise.ai/threats/vendors/nextcloud, 26 September 2026.