# CVE-2026-45545: Nextcloud: SQL Injection in Column Type Parameter Allows Arbitrary SQL Execution

> Authenticated attackers can execute arbitrary SQL queries via the Tables app, allowing database information extraction or modification.

- **Severity:** High 8.2 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2026
- **Updated:** 2 Jun 2026
- **Also known as:** GHSA-x43f-gmgh-vvjj

## What is CVE-2026-45545?

CVE-2026-45545 is a high-severity SQL injection vulnerability in nextcloud security-advisories, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-45545?

It affects 1 product.


Products: Nextcloud Tables.

## How do I fix CVE-2026-45545?

No fix has been published for CVE-2026-45545 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-45545 being exploited?

There is no known exploitation of CVE-2026-45545 in the wild and no public exploit code.

## Other vulnerabilities in nextcloud security-advisories

- [CVE-2026-45722](https://insights.sbomify.com/CVE-2026-45722/): Nextcloud: Tables app allows limited SQLi in ORDER BY with malicious sort order argument for Table Views (high 7.1)
- [CVE-2025-66551](https://insights.sbomify.com/CVE-2025-66551/): Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users (medium 6.3)
- [CVE-2024-52511](https://insights.sbomify.com/CVE-2024-52511/): Nextcloud Tables has an Authorization Bypass Through User-Controlled Key in Tables (medium 6.3)
- [CVE-2026-45544](https://insights.sbomify.com/CVE-2026-45544/): Nextcloud: Information Disclosure of view filter metdata via Broken Sensitive Data Masking in ViewService (medium 4.3)
- [CVE-2025-66513](https://insights.sbomify.com/CVE-2025-66513/): Nextcloud Tables app share information not limited to relevant users (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-45545 and fix it if it is affected.

What it is: CVE-2026-45545 is a high-severity SQL injection vulnerability in nextcloud security-advisories, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-45545 in the wild and no public exploit code.

Affected product: nextcloud security-advisories. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-45545/ (Markdown: https://insights.sbomify.com/CVE-2026-45545/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-45545
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-45545
- OSV: https://osv.dev/vulnerability/CVE-2026-45545

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-45545/
Summaries are generated and may contain mistakes; the official description above is the record.