# CVE-2024-39721: Denial of service in n/a

> Attackers can cause a denial of service by specifying a blocking file path, leading to infinite goroutine execution in Ollama.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Oct 2024
- **Updated:** 1 Nov 2024
- **Also known as:** GHSA-mvx2-276h-w78v

## What is CVE-2024-39721?

CVE-2024-39721 is a high-severity denial of service vulnerability in n/a, published on 31 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Ollama before 0.1.34. The CreateModelHandler function uses os.Open to read a file until completion. The req.Path parameter is user-controlled and can be set to /dev/random, which is blocking, causing the goroutine to run infinitely (even after the HTTP request is aborted by the client).

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2024-39721?

It affects 1 product.


Products: Ollama Ollama.

## How do I fix CVE-2024-39721?

No fix has been published for CVE-2024-39721 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-39721 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-39721 exists.

## Other vulnerabilities in n/a

- [CVE-2025-63389](https://insights.sbomify.com/CVE-2025-63389/): Ollama Platform has missing authentication enabling attackers to perform model management operations (critical 9.8)
- [CVE-2024-45436](https://insights.sbomify.com/CVE-2024-45436/): Ollama can extract members of a ZIP archive outside of the parent directory (critical 9.1)
- [CVE-2026-7482](https://insights.sbomify.com/CVE-2026-7482/): Ollama heap out-of-bounds read in GGUF tensor parsing leaks server process memory to unauthenticated remote attackers (high 8.8)
- [CVE-2024-37032](https://insights.sbomify.com/CVE-2024-37032/): Ollama does not validate the format of the digest (sha256 with 64 hex digits) (high 8.8)
- [CVE-2025-15514](https://insights.sbomify.com/CVE-2025-15514/): Ollama Multi-Modal Model Image Processing NULL Pointer Dereference (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-39721 and fix it if it is affected.

What it is: CVE-2024-39721 is a high-severity denial of service vulnerability in n/a, published on 31 Oct 2024. 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-2024-39721 exists.

Affected product: n/a. 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-2024-39721/ (Markdown: https://insights.sbomify.com/CVE-2024-39721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-39721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-39721
- OSV: https://osv.dev/vulnerability/CVE-2024-39721

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-39721/
Summaries are generated and may contain mistakes; the official description above is the record.