SQL Injection in Nextcloud Security-Advisories
CVE-2026-45545
Nextcloud is an open source content collaboration platform. From versions 0.7.0 to before 0.7.7, 0.8.0 to before 0.8.10, 0.9.0 to before 0.9.8, and 1.0.0 to before 1.0.4, an authenticated attacker with access to the Tables app may be able to execute arbitrary up to 20 bytes long SQL queries, through a stored injection. With carefully crafted input it is possible to break out of the length limitation. The attacker could use this to extract information from the database, or modify data. This issue has been patched in versions 0.7.7, 0.8.10, 0.9.8, 1.0.4, and 2.0.0.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Nextcloud Security-Advisories — versions >= 0.7.0, < 0.7.7, >= 0.8.0, < 0.8.10, >= 0.9.0, < 0.9.8
- Nextcloud Tables
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-x43f-gmgh-vvjj (Mitigation, Vendor Advisory)
- github.com/nextcloud/tables/pull/2309 (Patch, Issue Tracking)
- hackerone.com/reports/3462991 (Permissions Required)
Frequently asked questions
- What is CVE-2026-45545?
- CVE-2026-45545 is a high-severity vulnerability in Nextcloud Security-Advisories, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-01.
- How severe is CVE-2026-45545?
- High severity. CVSS v3 base score is 8.2 out of 10.