CVE-2026-82980
Last modified
CVE-2026-82980 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user.
Description
Any authenticated user can lock or unlock files they do not own by targeting absolute WebDAV paths of other users. The DAV plugin resolves files from the absolute request URI without verifying that the path segment matches the authenticated session user. This enables: Cross-user manual locks : attacker locks a victim's files, blocking writes (PUT/MOVE/DELETE, editor saves). Lock-token disclosure: the app returns the lock token to unauthorized callers, enabling them to remove token-based locks (client locks) of other users.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Files Lock | >= 31.0.0, <= 33.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-82980?
How severe is CVE-2026-82980?
How do I fix CVE-2026-82980?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-82964Improper preservation of permissions in the Avast sandbox mi…8.8
- CVE-2026-82967IBM Guardium Data Protection 12.2 is vulnerable to an authen…9.8
- CVE-2026-82968A flaw was found in the first-broker-login flow of the Keycl…6.4
- CVE-2026-8297Improper neutralization of special elements used in an SQL c…9.8
- CVE-2026-82970Unrestricted Upload of File with Dangerous Type vulnerabilit…10
- CVE-2026-82971A vulnerability was determined in QVidium Opera11 3.3.2a26-A…10
- CVE-2026-82982The Approval app's approve/reject endpoint is meant to requi…4.3
- CVE-2026-82985The Photos app's filter-based "smart albums" build their fil…6.5
- CVE-2026-82992Vulnerability in the Siebel CRM Deployment product of Oracle…7.8
- CVE-2026-82993Vulnerability in the PeopleSoft Enterprise PeopleTools produ…8.5
- CVE-2026-82994Vulnerability in the Oracle Platform Security for Java produ…9.8
- CVE-2026-82995Vulnerability in the Oracle Platform Security for Java produ…9.8
Are you affected by CVE-2026-82980?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST