# CVE-2024-55581: Security feature bypass in n/a

> Man-in-the-middle attacks are possible because the Ada Web Server client does not verify HTTPS server certificates by default when linked with GnuTLS.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Feb 2025
- **Updated:** 10 Mar 2025
- **Also known as:** DEBIAN-CVE-2024-55581, DLA-4080-1, GHSA-6pc8-5263-hvgq, UBUNTU-CVE-2024-55581

## What is CVE-2024-55581?

CVE-2024-55581 is a high-severity vulnerability in Debian Debian Linux, published on 26 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS configuration).

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2024-55581?

It affects 2 products.


Products: Adacore Ada Web Server, Debian Debian Linux.

## How do I fix CVE-2024-55581?

Apply the vendor's patch.

## Is CVE-2024-55581 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-55581 exists.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2025-52494](https://insights.sbomify.com/CVE-2025-52494/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-55581 and fix it if it is affected.

What it is: CVE-2024-55581 is a high-severity vulnerability in Debian Debian Linux, published on 26 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-55581 exists.

Affected product: Debian Debian Linux. 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-2024-55581/ (Markdown: https://insights.sbomify.com/CVE-2024-55581/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-55581
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-55581
- OSV: https://osv.dev/vulnerability/CVE-2024-55581

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-55581/
Summaries are generated and may contain mistakes; the official description above is the record.