# CVE-2023-35932: jcvi vulnerable to Configuration Injection due to unsanitized user input

> Attackers can inject malicious payloads into configuration files via unsanitized input, potentially leading to command execution in the jcvi library.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jun 2023
- **Updated:** 27 Nov 2024
- **Also known as:** GHSA-x49m-3cw7-gq5q, PYSEC-2026-1470

## What is CVE-2023-35932?

CVE-2023-35932 is a high-severity command injection vulnerability in tanghaibao jcvi, published on 23 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

jcvi is a Python library to facilitate genome assembly, annotation, and comparative genomics. A configuration injection happens when user input is considered by the application in an unsanitized format and can reach the configuration file. A malicious user may craft a special payload that may lead to a command injection. The impact of a configuration injection may vary. Under some conditions, it may lead to command injection if there is for instance shell code execution from the configuration file values. This vulnerability does not currently have a fix.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2023-35932?

3 open source packages ship an affected version, including jcvi. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `jcvi` | PyPI | All versions to 1.3.5 | None |
| `jcvi` | PyPI | All versions to 1.3.5 | None |
| `jcvi` | PyPI | All versions to 1.3.5 | None |

Products: Jcvi Project Jcvi.

## How do I fix CVE-2023-35932?

No fix has been published for CVE-2023-35932 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35932 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35932 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35932 and fix it if it is affected.

What it is: CVE-2023-35932 is a high-severity command injection vulnerability in tanghaibao jcvi, published on 23 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35932 exists.

Affected packages and fixed versions:
- jcvi (PyPI): affected all versions up to 1.3.5; no fix listed
- jcvi (PyPI): affected all versions up to 1.3.5; no fix listed
- jcvi (PyPI): affected all versions up to 1.3.5; 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-2023-35932/ (Markdown: https://insights.sbomify.com/CVE-2023-35932/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35932
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35932
- OSV: https://osv.dev/vulnerability/CVE-2023-35932

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-35932/
Summaries are generated and may contain mistakes; the official description above is the record.