# CVE-2020-26932: Misconfiguration in n/a

> Incorrect file permissions on sympa_newaliases-wrapper allow local attackers to escalate privileges to the sympa group.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2020-26932, GHSA-rpg9-m4gw-3xwf, UBUNTU-CVE-2020-26932

## What is CVE-2020-26932?

CVE-2020-26932 is a medium-severity vulnerability in Debian Debian Linux, published on 10 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

debian/sympa.postinst for the Debian Sympa package before 6.2.40~dfsg-7 uses mode 4755 for sympa_newaliases-wrapper, whereas the intended permissions are mode 4750 (for access by the sympa group)

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2020-26932?

It affects 2 products.


Products: Debian Debian Linux, Sympa Sympa.

## How do I fix CVE-2020-26932?

Apply the vendor's patch.

## Is CVE-2020-26932 being exploited?

There is no known exploitation of CVE-2020-26932 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26932 and fix it if it is affected.

What it is: CVE-2020-26932 is a medium-severity vulnerability in Debian Debian Linux, published on 10 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-26932 in the wild and no public exploit code.

Affected product: Debian Debian 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-2020-26932/ (Markdown: https://insights.sbomify.com/CVE-2020-26932/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26932
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26932
- OSV: https://osv.dev/vulnerability/CVE-2020-26932

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-26932/
Summaries are generated and may contain mistakes; the official description above is the record.