CVE-2026-49831 is a medium-severity (CVSS 5.5) Path Traversal vulnerability in org.dspace:dspace-api. A fix is available for org.dspace:dspace-api — see the affected versions and patch details below.
DSpace: Curation Task Reporter output path is not restricted to trusted directories (Path Traversal Vulnerability)
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2026-49831 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.dspace:dspace-api☕org.dspace:dspace-api☕org.dspace:dspace-api☕org.dspace:dspace-apiReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
DSpace open source software is a repository application which provides durable access to digital resources. Prior to versions 7.6.7, 8.4, 9.3, and 10.0, the Curation Task feature allows an output path to be used by the reporter (-r parameter), typically used to stream results and status of curation task operations. It is not restricted to any particular base path, meaning that any path writable by the DSpace (often 'tomcat') user is allowed. This constitutes a Path Traversal Vulnerability in the curate script. This issue has been patched in versions 7.6.7, 8.4, 9.3, and 10.0.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.dspace:dspace-api | all versions | 7.6.7org.dspace:dspace-api:7.6.7 |
| ☕Maven | org.dspace:dspace-api | ≥ 8.0-rc1&&< 8.4 | 8.4org.dspace:dspace-api:8.4 |
| ☕Maven | org.dspace:dspace-api | ≥ 9.0-rc1&&< 9.3 | 9.3org.dspace:dspace-api:9.3 |
| ☕Maven | org.dspace:dspace-api | ≥ 10-rc1&&< 10.0 | 10.0org.dspace:dspace-api:10.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.dspace:dspace-api, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.dspace:dspace-api to 7.6.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-49831 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-49831 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-49831. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-49831 in your dependencies?
O3 Security finds CVE-2026-49831 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.