# CVE-2026-17594: Nexus Repository 3 - Authorization Bypass in Repository Creation

> Users with delegated repository-admin privileges can bypass authorization checks to create repositories of unauthorized formats, leading to privilege escalation.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Aug 2026
- **Updated:** 7 Aug 2026
- **Also known as:** GHSA-9x3v-rxwx-3gx2, MINI-pvjw-772r-qfmf, MINI-vhpx-hfhx-49xp

## What is CVE-2026-17594?

CVE-2026-17594 is a high-severity missing authorization vulnerability in Sonatype Nexus Repository Manager, published on 7 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Nexus Repository 3 CE/Pro versions 3.0.0 through 3.94.x contain an incorrect authorization vulnerability (CWE-863) in the repository-creation user interface. An individual user account holding a delegated repository-admin privilege scoped to a specific repository format could create a repository of a different, unauthorized format, because authorization was checked against one request field while a separate, attacker-controlled field determined the repository format actually created. This does not affect the anonymous user, which cannot hold this privilege by default. Fixed in version 3.95.0.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-17594?

It affects 1 product.


Products: Sonatype Nexus Repository Manager.

## How do I fix CVE-2026-17594?

Upgrade to a fixed version.

## Is CVE-2026-17594 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-17594 exists.

Public exploit code:

- Sonatype Nexus Repository < 3.95.0 - Privilege Escalation via Repository Format Mismatch (nuclei): http/cves/2026/CVE-2026-17594.yaml

## Other vulnerabilities in Sonatype Nexus Repository Manager

- [CVE-2019-7238](https://insights.sbomify.com/CVE-2019-7238/): Sonatype Nexus Repository Manager Incorrect Access Control (critical 9.8, exploited in the wild)
- [CVE-2019-9629](https://insights.sbomify.com/CVE-2019-9629/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2017-17717](https://insights.sbomify.com/CVE-2017-17717/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2026-3199](https://insights.sbomify.com/CVE-2026-3199/): Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection (critical 9.4)
- [CVE-2026-5189](https://insights.sbomify.com/CVE-2026-5189/): Nexus Repository 3 - Hardcoded Credential in Internal Database Component (critical 9.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-17594 and fix it if it is affected.

What it is: CVE-2026-17594 is a high-severity missing authorization vulnerability in Sonatype Nexus Repository Manager, published on 7 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-2026-17594 exists.

Affected product: Sonatype Nexus Repository Manager. 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-2026-17594/ (Markdown: https://insights.sbomify.com/CVE-2026-17594/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-17594
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-17594
- OSV: https://osv.dev/vulnerability/CVE-2026-17594

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-17594/
Summaries are generated and may contain mistakes; the official description above is the record.