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

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). 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
    # 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

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