# CVE-2018-1000802: Python Software Foundation Python (CPython) version 2.7 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('C


- **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
- **Fix available:** Yes
- **Published:** 18 Sep 2018
- **Updated:** 8 Oct 2026
- **Also known as:** DEBIAN-CVE-2018-1000802, GHSA-grfr-pqc4-fqmw, SUSE-SU-2018:3002-1, UBUNTU-CVE-2018-1000802

## What is CVE-2018-1000802?

CVE-2018-1000802 is a critical vulnerability in Canonical Ubuntu Linux, published on 18 Sep 2018. 

### Official description

Python Software Foundation Python (CPython) version 2.7 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in shutil module (make_archive function) that can result in Denial of service, Information gain via injection of arbitrary files on the system or entire drive. This attack appear to be exploitable via Passage of unfiltered user input to the function. This vulnerability appears to have been fixed in after commit add531a1e55b0a739b0f42582f1c9747e5649ace.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2018-1000802?

It affects 4 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `python` | SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 2.7.14-7.3.1 |
| `python-base` | SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 2.7.14-7.3.1 |
| `python` | SUSE:Linux Enterprise Module for Desktop Applications 15 | All versions | 2.7.14-7.3.1 |

Products: Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Leap, Python Python.

## How do I fix CVE-2018-1000802?

Upgrade to a fixed version.

## Is CVE-2018-1000802 being exploited?

There is no known exploitation of CVE-2018-1000802 in the wild and no public exploit code.

Public exploit code:

- Python CVE-2018-1000802 Proof-of-Concept (github_poc): https://github.com/tna0y/CVE-2018-1000802-PoC

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1000802 and fix it if it is affected.

What it is: CVE-2018-1000802 is a critical vulnerability in Canonical Ubuntu Linux, published on 18 Sep 2018. 
Exploitation: There is no known exploitation of CVE-2018-1000802 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2018-1000802/ (Markdown: https://insights.sbomify.com/CVE-2018-1000802/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1000802
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1000802
- OSV: https://osv.dev/vulnerability/CVE-2018-1000802

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1000802/
Summaries are generated and may contain mistakes; the official description above is the record.