# CVE-2026-75855: ArcadeDB before 26.8.1 Path Traversal via create/drop database

> Authenticated root users can exploit path traversal in ArcadeDB to write or delete arbitrary files outside the database directory.

- **Severity:** High 8.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Aug 2026
- **Updated:** 19 Aug 2026
- **Also known as:** GHSA-qwgr-2c45-63xx, GHSA-vvcg-f4wp-c6qr

## What is CVE-2026-75855?

CVE-2026-75855 is a high-severity path traversal vulnerability in ArcadeData arcadedb, published on 18 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

ArcadeDB versions before 26.8.1 fail to sanitize database names in the POST /api/v1/server endpoint's create database and drop database commands, allowing authenticated root users to write and delete arbitrary files outside the configured database directory. Attackers can supply database names containing ../ sequences to create databases at arbitrary filesystem paths or recursively delete directories the server process can access.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-75855?


## How do I fix CVE-2026-75855?

No fix has been published for CVE-2026-75855 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-75855 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75855 exists.

Public exploit code:

- ArcadeDB versions before 26.8.1 fail to sanitize database names in the POST /api/v1/server endpoint's create database and drop database commands, allowing authenticated root users to write and delete arbitrary files outside the configured database directory. (github_poc): https://github.com/pervinzahidli/CVE-2026-75855

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-75855 and fix it if it is affected.

What it is: CVE-2026-75855 is a high-severity path traversal vulnerability in ArcadeData arcadedb, published on 18 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75855 exists.

Affected product: ArcadeData arcadedb. 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-2026-75855/ (Markdown: https://insights.sbomify.com/CVE-2026-75855/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-75855
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-75855
- OSV: https://osv.dev/vulnerability/CVE-2026-75855

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-75855/
Summaries are generated and may contain mistakes; the official description above is the record.