# CVE-2025-32907: Libsoup: denial of service in server when client requests a large amount of overlapping ranges with range header

> A malicious client can cause excessive memory consumption in libsoup servers by requesting overlapping HTTP ranges, leading to partial denial of service.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 14 Apr 2025
- **Updated:** 30 Jun 2026
- **Also known as:** AZL-60426, AZL-60429, CLSA-2025-1751133871, DEBIAN-CVE-2025-32907, GHSA-7wfq-7p2f-6344, ROOT-OS-DEBIAN-12-CVE-2025-32907, UBUNTU-CVE-2025-32907, openSUSE-SU-2025:15043-1

## What is CVE-2025-32907?

CVE-2025-32907 is a medium-severity denial of service vulnerability in Red Hat Enterprise Linux 10, published on 14 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A flaw was found in libsoup. The implementation of HTTP range requests is vulnerable to a resource consumption attack. This flaw allows a malicious client to request the same range many times in a single HTTP request, causing the server to use large amounts of memory. This does not allow for a full denial of service.

Weakness: CWE-1050 (Excessive Platform Resource Consumption within a Loop)

## Which versions are affected by CVE-2025-32907?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libsoup` | openSUSE:Tumbleweed | All versions | 3.6.5-3.1 |

## How do I fix CVE-2025-32907?

Apply the vendor's patch.

## Is CVE-2025-32907 being exploited?

There is no known exploitation of CVE-2025-32907 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-32907 and fix it if it is affected.

What it is: CVE-2025-32907 is a medium-severity denial of service vulnerability in Red Hat Enterprise Linux 10, published on 14 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-32907 in the wild and no public exploit code.

Affected product: Red Hat Enterprise Linux 10. 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-2025-32907/ (Markdown: https://insights.sbomify.com/CVE-2025-32907/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-32907
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-32907
- OSV: https://osv.dev/vulnerability/CVE-2025-32907

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-32907/
Summaries are generated and may contain mistakes; the official description above is the record.