Vulnerability-Lookup

CVE-2026-49830 (GCVE-0-2026-49830)

Vulnerability from cvelistv5 – Published: 2026-09-02 17:16 – Updated: 2026-09-03 14:31

Title

DSpace: ORE resource URI does not validate scheme for non-web resources

Summary

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, when ingesting an aggregated ORE resource by URI (using the OAI-ORE Harvester), the ORE Ingestion Crosswalk does not validate the URI scheme. This may allow for local file inclusion via malicious paths like file:///etc/passwd. The attacker MUST already have DSpace collection administrator privileges in order to perform the attack. This issue has been patched in versions 7.6.7, 8.4, 9.3, and 10.0.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 14:06 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/DSpace/DSpace/security/advisor…	x_refsource_CONFIRM
https://github.com/DSpace/DSpace/pull/12541	x_refsource_MISC
https://github.com/DSpace/DSpace/pull/12542	x_refsource_MISC
https://github.com/DSpace/DSpace/pull/12543	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
DSpace	DSpace	Affected: < 7.6.7 Affected: >= 8.0-rc1, < 8.4 Affected: >= 9.0-rc1, < 9.3 Affected: = 10-rc1	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-49830

Vulnerability from fkie_nvd - Published: 2026-09-02 18:19 - Updated: 2026-09-09 21:05

Severity

4.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/DSpace/DSpace/pull/12541
	security-advisories@github.com	https://github.com/DSpace/DSpace/pull/12542
	security-advisories@github.com	https://github.com/DSpace/DSpace/pull/12543
	security-advisories@github.com	https://github.com/DSpace/DSpace/security/advisories/GHSA-c827-pw3m-67w7

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "product": "DSpace",
          "vendor": "DSpace",
          "versions": [
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              "status": "affected",
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GHSA-C827-PW3M-67W7

Vulnerability from github – Published: 2026-07-08 20:25 – Updated: 2026-07-08 20:25

Summary

DSpace: ORE resource URI does not validate scheme for non-web resources

Details

Overview

When ingesting an aggregated ORE resource by URI (using the OAI-ORE Harvester), the ORE Ingestion Crosswalk does not validate the URI scheme. This may allow for local file inclusion via malicious paths like file:///etc/passwd. This vulnerability impacts DSpace versions <= 7.6.6, 8.0 <= 8.3, 9.0 <= 9.2. The attacker MUST already have DSpace collection administrator privileges in order to perform the attack.

Expected behaviour : Only external web resources should be ingested as ORE resources, preferably from the trusted endpoint.

Impact

A remote OAI endpoint configured as a harvest source for a DSpace collection can supply malicious ORE XML that results in a local file from the DSpace server being ingested as a bitstream.

Only Collection, Community and Site Administrators can configure a collection for OAI harvest, however an attacker may use stolen credentials to escalate into local file/data disclosure, or a compromised OAI endpoint could also supply malicious XML.

Patches

The fix is included in DSpace 7.6.7, 8.4, 9.3 and 10.0. Please upgrade to one of these versions or disable the ORE Crosswalk (see below).

If users cannot upgrade immediately, it is possible to manually patch their DSpace backend. (No changes are necessary to the frontend.) A pull request exists which can be used to patch systems running DSpace 7.6.x, 8.x or 9.x. * Pull request for 9.x: https://github.com/DSpace/DSpace/pull/12541 (Downloadable patch file) * Pull request for 8.x: https://github.com/DSpace/DSpace/pull/12543 (Downloadable patch file) * Pull request for 7.x: https://github.com/DSpace/DSpace/pull/12542 (Downloadable patch file)

Apply the patch to a user's DSpace

If at all possible, we recommend disabling the ORE Crosswalk (see below) or upgrading a user's DSpace site based on the upgrade instructions. However, if they are unable to do so, they can manually apply the above patches to their DSpace backend as follows: 1. Download the appropriate patch file to the machine where DSpace backend is running 2. From the [dspace-src] folder, apply the patch, e.g. git apply [name-of-file].patch 3. Now, update the DSpace site (based loosely on the Upgrade instructions). This generally involves three steps: 1. Rebuild DSpace, e.g. mvn -U clean package (This will recompile all DSpace backend code) 2. Redeploy DSpace, e.g. ant update (This will copy all newly built code to their installation directory). Depending on their setup they also may need to copy the updated "server" webapp over to their Tomcat webapps folder. 3. Restart Tomcat (or runnable JAR)

Workarounds

Disable the ORE ingestion crosswalk in dspace.cfg by commenting out or removing it from the list of plugin.named.org.dspace.content.crosswalk.IngestionCrosswalk plugins:

  # Remove or comment out this line
  org.dspace.content.crosswalk.OREIngestionCrosswalk = ore, \

Once they have patched their site or upgraded, they may safely enable the OREIngestionCrosswalk again.

Credits

Discovered & reported by Pablo Picurelli Ortiz (@superpegaso2703), cybersecurity student at Universidad Rey Juan Carlos. Code fix developed by Kim Shepherd (@kshepherd) of The Library Code

Severity

4.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

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      "database_specific": {
        "last_known_affected_version_range": "\u003c= 7.6.6"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.dspace:dspace-api"
      },
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            {
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              "fixed": "7.6.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
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      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.3"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.dspace:dspace-api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0-rc1"
            },
            {
              "fixed": "8.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.dspace:dspace-api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0-rc1"
            },
            {
              "fixed": "9.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.dspace:dspace-api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10-rc1"
            },
            {
              "fixed": "10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10-rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49830"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-08T20:25:54Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Overview\n\nWhen ingesting an aggregated ORE resource by URI (using the [OAI-ORE Harvester](https://wiki.lyrasis.org/spaces/DSDOC9x/pages/379125906/OAI#OAI-OAI-PMH/OAI-OREHarvester(Client))), the ORE Ingestion Crosswalk does not validate the URI scheme. This may allow for local file inclusion via malicious paths like `file:///etc/passwd`. _This vulnerability impacts DSpace versions \u003c= 7.6.6, 8.0 \u003c= 8.3, 9.0 \u003c= 9.2._ The attacker MUST already have DSpace collection administrator privileges in order to perform the attack.\n\nExpected behaviour : Only external web resources should be ingested as ORE resources, preferably from the trusted endpoint.\n\n## Impact\n\nA remote OAI endpoint configured as a harvest source for a DSpace collection can supply malicious ORE XML that results in a local file from the DSpace server being ingested as a bitstream.\n\nOnly Collection, Community and Site Administrators can configure a collection for OAI harvest, however an attacker may use stolen credentials to escalate into local file/data disclosure, or a compromised OAI endpoint could also supply malicious XML.\n\n## Patches\n\nThe fix is included in DSpace 7.6.7, 8.4, 9.3 and 10.0.  Please upgrade to one of these versions or disable the ORE Crosswalk (see below).\n\nIf users cannot upgrade immediately, it is possible to manually patch their DSpace backend. (No changes are necessary to the frontend.) A pull request exists which can be used to patch systems running DSpace 7.6.x, 8.x or 9.x.\n* Pull request for 9.x: https://github.com/DSpace/DSpace/pull/12541  ([Downloadable patch file](https://github.com/DSpace/DSpace/pull/12541.patch))\n* Pull request for 8.x: https://github.com/DSpace/DSpace/pull/12543  ([Downloadable patch file](https://github.com/DSpace/DSpace/pull/12543.patch))\n* Pull request for 7.x: https://github.com/DSpace/DSpace/pull/12542  ([Downloadable patch file](https://github.com/DSpace/DSpace/pull/12542.patch))\n\n\n### Apply the patch to a user\u0027s DSpace\nIf at all possible, we recommend disabling the ORE Crosswalk (see below) or upgrading a user\u0027s DSpace site based on the upgrade instructions. However, if they are unable to do so, they can manually apply the above patches to their DSpace backend as follows:\n1. Download the appropriate patch file to the machine where DSpace backend is running\n2. From the `[dspace-src]` folder, apply the patch, e.g. `git apply [name-of-file].patch`\n3. Now, update the DSpace site (based loosely on the Upgrade instructions). This generally involves three steps:\n    1. Rebuild DSpace, e.g. `mvn -U clean package`  (This will recompile all DSpace backend code)\n    2. Redeploy DSpace, e.g. `ant update`  (This will copy all newly built code to their installation directory). Depending on their setup they also may need to copy the updated \"server\" webapp over to their Tomcat webapps folder.\n    3. Restart Tomcat (or runnable JAR)\n\n## Workarounds\n* Disable the ORE ingestion crosswalk in `dspace.cfg` by commenting out or removing it from the list of `plugin.named.org.dspace.content.crosswalk.IngestionCrosswalk` plugins:\n```\n  # Remove or comment out this line\n  org.dspace.content.crosswalk.OREIngestionCrosswalk = ore, \\\n```\n* Once they have patched their site or upgraded, they may safely enable the OREIngestionCrosswalk again.\n\n## Credits\nDiscovered \u0026 reported by Pablo Picurelli Ortiz (@superpegaso2703), cybersecurity student at Universidad Rey Juan Carlos.\nCode fix developed by Kim Shepherd (@kshepherd) of The Library Code",
  "id": "GHSA-c827-pw3m-67w7",
  "modified": "2026-07-08T20:25:54Z",
  "published": "2026-07-08T20:25:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/DSpace/DSpace/security/advisories/GHSA-c827-pw3m-67w7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DSpace/DSpace/pull/12541"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DSpace/DSpace/pull/12542"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DSpace/DSpace/pull/12543"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/DSpace/DSpace"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "DSpace: ORE resource URI does not validate scheme for non-web resources"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-49830 (GCVE-0-2026-49830)

FKIE_CVE-2026-49830

GHSA-C827-PW3M-67W7

Overview

Impact

Patches

Apply the patch to a user's DSpace

Workarounds

Credits

Tags

Sightings

Nomenclature

Related by attack behaviour