# CVE-2026-49833: DSpace path traversal in LDN message generation

Source: https://junglewise.ai/threats/cve-2026-49833-dspace-path-traversal-in-ldn-message-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-02. Updated: 2026-07-08  
License: CC BY 4.0 with a link back

CVE-2026-49833 · Severity: medium · CVSS 5.5 · Published 2026-09-02

DSpace is an open-source platform used by organizations to manage and preserve digital research and scholarly content. A security flaw in its notification service allows an administrator to access unauthorized files on the server. In a worst-case scenario, this could be used to steal sensitive data or take full control of the server by executing malicious code.

Technologies: [org.dspace:dspace-api (Maven)](https://junglewise.ai/threats/technologies/org-dspace-dspace-api). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2026-49833 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-49833 being exploited in the wild.

**How severe is CVE-2026-49833?** Medium severity, with a CVSS score of 5.5, published 2 September 2026.

**Which products and versions are affected?** org.dspace:dspace-api (Maven) ECOSYSTEM:introduced=8.0-rc1,fixed=8.4.

**Is there a fix for CVE-2026-49833?** Yes. org.dspace:dspace-api (Maven): upgrade to 8.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-49833 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-49833?** Check whether you run org.dspace:dspace-api (Maven) at an affected version. 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.

## How to fix

- org.dspace:dspace-api (Maven): upgrade to 8.4 or later

  ```sh
  # set org.dspace:dspace-api to 8.4 in your pom.xml or build.gradle
  ```


## Technical details

A path traversal vulnerability exists in the COAR Notify / LDN service of DSpace due to insufficient validation of 'inbound pattern' or 'template' names. The LDN class fails to restrict template file paths to the expected base directory ($dspace.dir/config/ldn), allowing an attacker with DSpace administrator credentials to reference arbitrary files on the filesystem. If an attacker can place a malicious Apache Velocity payload in a predictable location (such as a log file), they can use this vulnerability to include that file as a template, leading to information disclosure or remote code execution. The vulnerability is patched in versions 8.4, 9.3, and 10.0.

## Affected products

- DSpace DSpace >= 8.0-rc1, <= 8.3, >= 9.0-rc1, <= 9.2, 10.0-rc1

## Identifiers

- CVE-2026-49833
- GHSA-9qm4-rh6w-pq5x

## Timeline

- 2026-06-01: disclosed
- 2026-07-08: advisory

## References

- [https://api.github.com/users/superpegaso2703](https://api.github.com/users/superpegaso2703)
- [https://github.com/superpegaso2703](https://github.com/superpegaso2703)
- [https://api.github.com/users/superpegaso2703/gists%7B/gist_id%7D](https://api.github.com/users/superpegaso2703/gists%7B/gist_id%7D)
- [https://api.github.com/users/superpegaso2703/repos](https://api.github.com/users/superpegaso2703/repos)
- [https://avatars.githubusercontent.com/u/177873564?v=4](https://avatars.githubusercontent.com/u/177873564?v=4)
- [https://api.github.com/users/superpegaso2703/events%7B/privacy%7D](https://api.github.com/users/superpegaso2703/events%7B/privacy%7D)

## Related threats

- [DSpace RCE via Velocity Templates in LDN component](https://junglewise.ai/threats/cve-2026-49832-dspace-rce-via-velocity-templates-in-ldn-component)
- [DSpace open source software is a repository application which provides durable access to digital resources. Prior to versions 7.6.7, 8.4, 9.](https://junglewise.ai/threats/cve-2026-49831-dspace-path-traversal-in-curation-task-reporter)
- [DSpace open source software is a repository application which provides durable access to digital resources. Prior to versions 7.6.7, 8.4, 9.](https://junglewise.ai/threats/cve-2026-49830-dspace-local-file-inclusion-in-oai-ore-harvester)
- [DSpace is vulnerable to Path Traversal attacks when importing packages using Simple Archive Format](https://junglewise.ai/threats/cve-2025-53622-dspace-is-vulnerable-to-path-traversal-attacks-when-importing)
- [DSpace is vulnerable to XML External Entity injection during archive imports](https://junglewise.ai/threats/cve-2025-53621-dspace-is-vulnerable-to-xml-external-entity-injection-during)