# CVE-2023-34540: Langchain OS Command Injection vulnerability

> Attackers can execute arbitrary code via crafted input in the JiraAPIWrapper component of the Langchain library.

- **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:** 14 Jun 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-x32c-59v5-h7fg, PYSEC-2023-91

## What is CVE-2023-34540?

CVE-2023-34540 is a critical code injection vulnerability in n/a, published on 14 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Langchain before v0.0.225 was discovered to contain a remote code execution (RCE) vulnerability in the component JiraAPIWrapper (aka the JIRA API wrapper). This vulnerability allows attackers to execute arbitrary code via crafted input. As noted in the "releases/tag" reference, a fix is available.

## Which versions are affected by CVE-2023-34540?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `langchain` | PyPI | All versions | 0.0.225 |
| `langchain` | PyPI | All versions | 0.0.225 |
| `langchain` | PyPI | All versions | 0.0.225 |

Products: Langchain Langchain.

## How do I fix CVE-2023-34540?

Upgrade langchain to 0.0.225 or later.

## Is CVE-2023-34540 being exploited?

There is no known exploitation of CVE-2023-34540 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-39631](https://insights.sbomify.com/CVE-2023-39631/): Langchain vulnerable to arbitrary code execution via the evaluate function in the numexpr library (critical 9.8)
- [CVE-2023-36281](https://insights.sbomify.com/CVE-2023-36281/): langchain vulnerable to arbitrary code execution (critical 9.8)
- [CVE-2023-38860](https://insights.sbomify.com/CVE-2023-38860/): LangChain vulnerable to arbitrary code execution (critical 9.8)
- [CVE-2023-38896](https://insights.sbomify.com/CVE-2023-38896/): LangChain vulnerable to arbitrary code execution (critical 9.8)
- [CVE-2023-39659](https://insights.sbomify.com/CVE-2023-39659/): LangChain vulnerable to arbitrary code execution (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-34540 and fix it if it is affected.

What it is: CVE-2023-34540 is a critical code injection vulnerability in n/a, published on 14 Jun 2023. 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-2023-34540 in the wild and no public exploit code.

Affected packages and fixed versions:
- langchain (PyPI): affected all versions; fixed in 0.0.225
- langchain (PyPI): affected all versions; fixed in 0.0.225
- langchain (PyPI): affected all versions; fixed in 0.0.225

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-2023-34540/ (Markdown: https://insights.sbomify.com/CVE-2023-34540/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34540
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34540
- OSV: https://osv.dev/vulnerability/CVE-2023-34540

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-34540/
Summaries are generated and may contain mistakes; the official description above is the record.