# CVE-2025-49840: GHSL-2025-052: GPT-SoVITS Deserialization of Untrusted Data vulnerability

> Attackers can execute arbitrary code via unsafe deserialization in the GPT-SoVITS webUI when loading user-controlled model paths.

- **Severity:** High 8.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jul 2025
- **Updated:** 16 Jul 2025

## What is CVE-2025-49840?

CVE-2025-49840 is a high-severity unsafe deserialization vulnerability in RVC-Boss GPT-SoVITS, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

GPT-SoVITS-WebUI is a voice conversion and text-to-speech webUI. In versions 20250228v3 and prior, there is an unsafe deserialization vulnerability in inference_webui.py. The GPT_dropdown variable takes user input and passes it to the change_gpt_weights function. In change_gpt_weights, the user input, here gpt_path is used to load a model with torch.load, leading to unsafe deserialization. At time of publication, no known patched versions are available.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2025-49840?

It affects 1 product.


Products: Rvc-Boss Gpt-Sovits-Webui.

## How do I fix CVE-2025-49840?

No fix has been published for CVE-2025-49840 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-49840 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-49840 exists.

## Other vulnerabilities in RVC-Boss GPT-SoVITS

- [CVE-2025-49833](https://insights.sbomify.com/CVE-2025-49833/): GHSL-2025-045: GPT-SoVITS Command Injection vulnerability (high 8.9)
- [CVE-2025-49834](https://insights.sbomify.com/CVE-2025-49834/): GHSL-2025-046: GPT-SoVITS Command Injection vulnerability (high 8.9)
- [CVE-2025-49835](https://insights.sbomify.com/CVE-2025-49835/): GHSL-2025-047: GPT-SoVITS Command Injection vulnerability (high 8.9)
- [CVE-2025-49836](https://insights.sbomify.com/CVE-2025-49836/): GHSL-2025-048: GPT-SoVITS Command Injection vulnerability (high 8.9)
- [CVE-2025-49837](https://insights.sbomify.com/CVE-2025-49837/): GHSL-2025-049: GPT-SoVITS Deserialization of Untrusted Data vulnerability (high 8.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-49840 and fix it if it is affected.

What it is: CVE-2025-49840 is a high-severity unsafe deserialization vulnerability in RVC-Boss GPT-SoVITS, published on 15 Jul 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-2025-49840 exists.

Affected product: RVC-Boss GPT-SoVITS. 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-2025-49840/ (Markdown: https://insights.sbomify.com/CVE-2025-49840/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-49840
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-49840
- OSV: https://osv.dev/vulnerability/CVE-2025-49840

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-49840/
Summaries are generated and may contain mistakes; the official description above is the record.