# CVE-2026-53448: Coturn: SQL Injection in HTTPS Admin Panel Delete Operations

> An authenticated admin can inject SQL via admin panel delete operations to gain database control and potentially execute OS commands.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Jul 2026
- **Updated:** 15 Jul 2026
- **Also known as:** DEBIAN-CVE-2026-53448, GHSA-v8hj-2xx7-xmp5, UBUNTU-CVE-2026-53448

## What is CVE-2026-53448?

CVE-2026-53448 is a high-severity SQL injection vulnerability in coturn, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.12.0, the coturn HTTPS admin panel passes HTTP query parameters directly into SQL queries via snprintf string interpolation without sanitization. The is_secure_string filter that protects the STUN protocol path is not applied to the admin panel's delete-user, delete-secret, and delete-IP operations, so an authenticated admin can inject arbitrary SQL through the du, ds, and dip parameters, gaining full database control and potentially OS-level access via PostgreSQL COPY TO PROGRAM. This issue is fixed in version 4.12.0.

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

## Which versions are affected by CVE-2026-53448?

It affects 1 product.


Products: Coturn Project Coturn.

## How do I fix CVE-2026-53448?

Upgrade to a fixed version.

## Is CVE-2026-53448 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53448 exists.

## Other vulnerabilities in coturn

- [CVE-2018-4056](https://insights.sbomify.com/CVE-2018-4056/): SQL injection in coTURN (critical 9.1)
- [CVE-2026-43994](https://insights.sbomify.com/CVE-2026-43994/): Coturn: Stack buffer overflow in decode_oauth_token_gcm() (high 8.1)
- [CVE-2018-4058](https://insights.sbomify.com/CVE-2018-4058/): Server-side request forgery in coTURN (high 7.7)
- [CVE-2026-40613](https://insights.sbomify.com/CVE-2026-40613/): Coturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64) (high 7.5)
- [CVE-2026-53450](https://insights.sbomify.com/CVE-2026-53450/): Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53448 and fix it if it is affected.

What it is: CVE-2026-53448 is a high-severity SQL injection vulnerability in coturn, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53448 exists.

Affected product: coturn. 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-2026-53448/ (Markdown: https://insights.sbomify.com/CVE-2026-53448/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53448
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53448
- OSV: https://osv.dev/vulnerability/CVE-2026-53448

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53448/
Summaries are generated and may contain mistakes; the official description above is the record.