# CVE-2026-113369: Sonatype Nexus Repository stored XSS in OCI manifest artifact type

Source: https://junglewise.ai/threats/cve-2026-113369-sonatype-nexus-repository-3-allows-a-user-account-that-can-push  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-04. Updated: 2026-11-04  
License: CC BY 4.0 with a link back

CVE-2026-113369 · Severity: info · Published 2026-11-04

Sonatype Nexus Repository is an artifact management system that stores and manages software packages and container images. A user with push permissions to an OCI repository can inject malicious script code into the artifact type field of a manifest. The script executes in the browser of any other user viewing the image in the Browse interface, potentially allowing account takeover or unauthorized actions with the viewing user's permissions.

Technologies: [Sonatype Nexus Repository 3](https://junglewise.ai/threats/technologies/nexus-repository-3). Vendors: [Sonatype](https://junglewise.ai/threats/vendors/sonatype).

## Quick answers

**Is CVE-2026-113369 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-113369 being exploited in the wild.

**How severe is CVE-2026-113369?** Informational severity, published 4 November 2026.

**Which products and versions are affected?** Sonatype Nexus Repository 3.

**Is there a fix for CVE-2026-113369?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-113369 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-113369?** Check whether you run Sonatype Nexus Repository 3. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a stored cross-site scripting (XSS) vulnerability in the OCI manifest handling code. An authenticated attacker with edit permission on a hosted OCI repository can store arbitrary script content in the artifact type field of a manifest. The script is executed when any user opens the Attestations tab for that image in the Browse UI, running with the permissions of the viewing user. No network segmentation bypass or privilege escalation is required—only valid repository edit credentials.

## Affected products

- Sonatype Nexus Repository 3

## Timeline

- 2026-11-04: disclosed

## References

- [https://help.sonatype.com/en/sonatype-nexus-repository-3-98-0-release-notes.html](https://help.sonatype.com/en/sonatype-nexus-repository-3-98-0-release-notes.html)
- [https://support.sonatype.com/hc/en-us/articles/56597339691027/](https://support.sonatype.com/hc/en-us/articles/56597339691027/)

## Related threats

- [Sonatype Nexus Repository 3 authorization bypass in Rut Auth capability](https://junglewise.ai/threats/cve-2026-113374-sonatype-nexus-repository-3-does-not-require-realm)
- [Sonatype Nexus Repository 3 YUM private key disclosure to read-only accounts](https://junglewise.ai/threats/cve-2026-113372-sonatype-nexus-repository-3-returns-the-private-signing-key-of-a)
- [Sonatype Nexus Repository 3 signing passphrase disclosure in REST endpoint](https://junglewise.ai/threats/cve-2026-113371-sonatype-nexus-repository-3-returns-the-signing-passphrase-of-an)
- [Sonatype Nexus Repository 3 SQL injection in Reindex Search Tables task](https://junglewise.ai/threats/cve-2026-113370-sonatype-nexus-repository-3-contains-a-sql-injection)
- [Sonatype Nexus Repository 3 privilege escalation via unauthorized repository access](https://junglewise.ai/threats/cve-2026-113368-sonatype-nexus-repository-3-does-not-check-that-a-user-account)