# CVE-2025-63389: Ollama Platform has missing authentication enabling attackers to perform model management operations

> Remote attackers can bypass authentication to perform unauthorized model management operations on Ollama API endpoints.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Dec 2025
- **Updated:** 22 Jan 2026
- **Also known as:** CLEANSTART-2026-TR14013, GHSA-f6mr-38g8-39rg, GO-2025-4251, MINI-gwpm-gjp3-m584, MINI-wwpr-rv7m-7738

## What is CVE-2025-63389?

CVE-2025-63389 is a critical authentication bypass vulnerability in n/a, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, enabling remote attackers to perform unauthorized model management operations.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2025-63389?

3 open source packages ship an affected version, including github.com/ollama/ollama. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/ollama/ollama` | Go | All versions | None |
| `github.com/ollama/ollama` | Go | All versions to 0.13.5 | None |
| `github.com/ollama/ollama` | Go | All versions to 0.13.5 | None |

Products: Ollama Ollama.

## How do I fix CVE-2025-63389?

Upgrade to a fixed version.

## Is CVE-2025-63389 being exploited?

There is no known exploitation of CVE-2025-63389 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [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)
- [CVE-2024-39720](https://insights.sbomify.com/CVE-2024-39720/): Ollama Out-of-bounds Read (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63389 and fix it if it is affected.

What it is: CVE-2025-63389 is a critical authentication bypass vulnerability in n/a, published on 18 Dec 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-2025-63389 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/ollama/ollama (Go): affected all versions; no fix listed
- github.com/ollama/ollama (Go): affected all versions up to 0.13.5; no fix listed
- github.com/ollama/ollama (Go): affected all versions up to 0.13.5; no fix listed

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-2025-63389/ (Markdown: https://insights.sbomify.com/CVE-2025-63389/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63389
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63389
- OSV: https://osv.dev/vulnerability/CVE-2025-63389

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-63389/
Summaries are generated and may contain mistakes; the official description above is the record.