# CVE-2026-32772: Information disclosure in inetutils

> A malicious telnet server can read arbitrary environment variables from connecting clients, potentially exposing sensitive configuration data.

- **Severity:** Low 3.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 13 Mar 2026
- **Updated:** 16 Mar 2026
- **Also known as:** DEBIAN-CVE-2026-32772, GHSA-5p6r-4c7p-96fh, UBUNTU-CVE-2026-32772

## What is CVE-2026-32772?

CVE-2026-32772 is a low-severity vulnerability in GNU inetutils, published on 13 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

Weakness: CWE-669 (Incorrect Resource Transfer Between Spheres)

## Which versions are affected by CVE-2026-32772?

It affects 1 product.


Products: Gnu Inetutils.

## How do I fix CVE-2026-32772?

Upgrade to a fixed version.

## Is CVE-2026-32772 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32772 exists.

## Other vulnerabilities in GNU inetutils

- [CVE-2026-32746](https://insights.sbomify.com/CVE-2026-32746/): Memory corruption in inetutils (critical 9.8)
- [CVE-2023-40303](https://insights.sbomify.com/CVE-2023-40303/): Privilege escalation in n/a (high 7.8)
- [CVE-2026-28372](https://insights.sbomify.com/CVE-2026-28372/): Privilege escalation in inetutils (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-32772 and fix it if it is affected.

What it is: CVE-2026-32772 is a low-severity vulnerability in GNU inetutils, published on 13 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32772 exists.

Affected product: GNU inetutils. 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-2026-32772/ (Markdown: https://insights.sbomify.com/CVE-2026-32772/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-32772
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-32772
- OSV: https://osv.dev/vulnerability/CVE-2026-32772

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-32772/
Summaries are generated and may contain mistakes; the official description above is the record.