Uncontrolled resource consumption in Nextcloud End-to-End Encryption
Priority LOW 30CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service, Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400 and CWE-639.
Summary
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
Why it matters now
EPSS 0.00722 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Nextcloud End-to-End Encryption | Fixed in 1.5.3, 1.6.3, 1.7.1 | — | No fix listed | CNA |
- Nextcloud End-to-End Encryption Vendor— Affected Fixed in 1.5.3, 1.6.3, 1.7.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:end-to-end_encryption:*:*:*:*:*:*:*:* | before 1.5.3; 1.6.0 to before 1.6.3; 1.7.0 to before 1.7.1 | Vulnerable | nextcloud |
- cpe:2.3:a:nextcloud:end-to-end_encryption:*:*:*:*:*:*:*:* Versions before 1.5.3; 1.6.0 to before 1.6.3; 1.7.0 to before 1.7.1 Vulnerable ·nextcloud
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22906
References
More nextcloud End-to-end Encryption vulnerabilities
- TI-2023-17618 End-to-End encrypted file-drops can be made inaccessible CVSS 3.1MEDIUM 6.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences