# CVE-2026-48210: Possible information disclosure via External Interface

> Improper default configuration in OTRS exposes internal ticket information to the external frontend by enforcing customer visibility flags.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 May 2026
- **Updated:** 1 Jun 2026
- **Also known as:** GHSA-f9pc-83mw-48hx

## What is CVE-2026-48210?

CVE-2026-48210 is a medium-severity vulnerability in Otrs Otrs, published on 31 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An improper default configuration in OTRS 2026.3.1 causes ticket article forwarding actions to enforce the “Is visible for customer” flag by default and prevent users from disabling it via the UI. This leads to unintended exposure of internal ticket information to the External Frontend

This issue affects OTRS 2026.3.1

Weakness: CWE-269 (Improper Privilege Management), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-48210?

It affects 1 product.


Products: Otrs Otrs.

## How do I fix CVE-2026-48210?

No fix has been published for CVE-2026-48210 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48210 being exploited?

There is no known exploitation of CVE-2026-48210 in the wild and no public exploit code.

## Other vulnerabilities in Otrs Otrs

- [CVE-2026-48188](https://insights.sbomify.com/CVE-2026-48188/): SQL Injection via MySQL Quote Method (critical 9.1)
- [CVE-2013-4717](https://insights.sbomify.com/CVE-2013-4717/): SQL injection in n/a (high 8.8)
- [CVE-2017-14635](https://insights.sbomify.com/CVE-2017-14635/): Code injection in n/a (high 8.8)
- [CVE-2023-5422](https://insights.sbomify.com/CVE-2023-5422/): SSL Certificates are not checked for E-Mail Handling (high 8.7)
- [CVE-2023-6254](https://insights.sbomify.com/CVE-2023-6254/): Password is send back to client (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48210 and fix it if it is affected.

What it is: CVE-2026-48210 is a medium-severity vulnerability in Otrs Otrs, published on 31 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-48210 in the wild and no public exploit code.

Affected product: Otrs Otrs. 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-2026-48210/ (Markdown: https://insights.sbomify.com/CVE-2026-48210/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48210
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48210
- OSV: https://osv.dev/vulnerability/CVE-2026-48210

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48210/
Summaries are generated and may contain mistakes; the official description above is the record.