Vulnerability-Lookup

CVE-2026-61586 (GCVE-0-2026-61586)

Vulnerability from cvelistv5 – Published: 2026-10-30 18:59 – Updated: 2026-11-05 02:30

Title

Copernik XML Factory: Improper restriction of XInclude resource resolution in Copernik XML Factory (stock JDK provider)

Summary

Copernik XML Factory provides secure-by-default JAXP factory creation for Java. Prior to 0.1.2, Copernik XML Factory does not block XInclude resource resolution on the stock JDK provider after an application enables XInclude on a factory returned by `XmlFactories.newDocumentBuilderFactory()` or `XmlFactories.newSAXParserFactory()`, or on an `XMLReader` passed through `XmlFactories.harden()`. An application parsing untrusted XML can resolve attacker-controlled `xi:include` references to disclose local files or, through `http` references, reach internal network endpoints by server-side request forgery. Exploitation requires use of one of those factory/hardening APIs, the stock JDK provider with Apache Xerces absent from the classpath, explicit `setXIncludeAware(true)` or the equivalent reader feature, and XML from an untrusted source. The Xerces provider selected when Xerces is present and the Android provider are unaffected. This issue is fixed in version 0.1.2.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-05 02:30 UTC

CWE

CWE-611 - Improper Restriction of XML External Entity Reference

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7784 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/copernik-eu/copernik-xml-facto…	x_refsource_CONFIRM
https://github.com/copernik-eu/copernik-xml-facto…	x_refsource_MISC
https://github.com/copernik-eu/copernik-xml-facto…	x_refsource_MISC
https://github.com/copernik-eu/copernik-xml-facto…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
copernik-eu	copernik-xml-factory	Affected: < 0.1.2	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-61586

Vulnerability from fkie_nvd - Published: 2026-10-30 19:18 - Updated: 2026-11-05 03:17

Severity

8.2 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/copernik-eu/copernik-xml-factory/commit/2fa042c44931b0a4ddd585d62b97a8a987efd6c6
	security-advisories@github.com	https://github.com/copernik-eu/copernik-xml-factory/commit/e5febc6039ed4b0088245acb80ed7d6d6a7f5537
	security-advisories@github.com	https://github.com/copernik-eu/copernik-xml-factory/releases/tag/v0.1.2
	security-advisories@github.com	https://github.com/copernik-eu/copernik-xml-factory/security/advisories/GHSA-xm28-xvqc-gxxg

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "copernik-xml-factory",
          "vendor": "copernik-eu",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.1.2"
            }
          ]
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      "source": "security-advisories@github.com"
    }
  ],
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    {
      "lang": "en",
      "value": "Copernik XML Factory provides secure-by-default JAXP factory creation for Java. Prior to 0.1.2, Copernik XML Factory does not block XInclude resource resolution on the stock JDK provider after an application enables XInclude on a factory returned by `XmlFactories.newDocumentBuilderFactory()` or `XmlFactories.newSAXParserFactory()`, or on an `XMLReader` passed through `XmlFactories.harden()`. An application parsing untrusted XML can resolve attacker-controlled `xi:include` references to disclose local files or, through `http` references, reach internal network endpoints by server-side request forgery. Exploitation requires use of one of those factory/hardening APIs, the stock JDK provider with Apache Xerces absent from the classpath, explicit `setXIncludeAware(true)` or the equivalent reader feature, and XML from an untrusted source. The Xerces provider selected when Xerces is present and the Android provider are unaffected. This issue is fixed in version 0.1.2."
    }
  ],
  "id": "CVE-2026-61586",
  "lastModified": "2026-11-05T03:17:28.920",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
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          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61586",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-11-05T02:30:32.748589Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-30T19:18:27.840",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/commit/2fa042c44931b0a4ddd585d62b97a8a987efd6c6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/commit/e5febc6039ed4b0088245acb80ed7d6d6a7f5537"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/releases/tag/v0.1.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/security/advisories/GHSA-xm28-xvqc-gxxg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-XM28-XVQC-GXXG

Vulnerability from github – Published: 2026-10-02 18:27 – Updated: 2026-10-02 18:27

Summary

Copernik XML Factory (stock JDK provider) has Improper restriction of XInclude resource resolution

Details

Copernik XML Factory through 0.1.1, when running on its stock JDK provider, does not block XInclude resource resolution after an application enables XInclude on a factory returned by XmlFactories.newDocumentBuilderFactory() or XmlFactories.newSAXParserFactory(), or on an XMLReader passed through XmlFactories.harden(). The library's documented guarantee that XInclude resolution stays disabled therefore does not hold on that provider.

An application that parses untrusted XML in this configuration can be made to resolve xi:include references, allowing an attacker to read local files (information disclosure) or, through http hrefs, reach internal network endpoints (SSRF).

All of the following conditions must hold for an application to be affected: - it obtains a factory from XmlFactories.newDocumentBuilderFactory() or XmlFactories.newSAXParserFactory(), or hardens an externally obtained XMLReader with XmlFactories.harden(); - the stock JDK provider is in effect, that is, Apache Xerces is not on the classpath; - XInclude is enabled, by calling setXIncludeAware(true) or the equivalent reader feature; - it parses XML from an untrusted source.

The Xerces provider (selected when Xerces is on the classpath) and the Android provider are not affected.

Applications are advised to upgrade to 0.1.2, which fixes the defect. As a workaround add Apache Xerces (xercesImpl) to the classpath so the library selects its unaffected Xerces provider.

Acknowledgements

The maintainer thank the following people for finding, reporting, and helping to remediate this issue:

Finders: Ta Duc Thien and Duc Anh Nguyen (Danzation)
Remediation developer: Ta Duc Thien
Tooling: Claude Code (Anthropic), Claude Opus 4.8

Severity

8.2 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

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To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "eu.copernik:copernik-xml-factory"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-61586"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-02T18:27:17Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Copernik XML Factory through `0.1.1`, when running on its stock JDK provider, does not block XInclude resource resolution after an application enables XInclude on a factory returned by `XmlFactories.newDocumentBuilderFactory()` or `XmlFactories.newSAXParserFactory()`, or on an `XMLReader` passed through `XmlFactories.harden()`. The library\u0027s documented guarantee that XInclude resolution stays disabled therefore does not hold on that provider.\n\nAn application that parses untrusted XML in this configuration can be made to resolve `xi:include` references, allowing an attacker to read local files (information disclosure) or, through `http` hrefs, reach internal network endpoints (SSRF).\n\nAll of the following conditions must hold for an application to be affected:\n- it obtains a factory from `XmlFactories.newDocumentBuilderFactory()` or `XmlFactories.newSAXParserFactory()`, or hardens an externally obtained `XMLReader` with `XmlFactories.harden()`;\n- the stock JDK provider is in effect, that is, Apache Xerces is not on the classpath;\n- XInclude is enabled, by calling `setXIncludeAware(true)` or the equivalent reader feature;\n- it parses XML from an untrusted source.\n\nThe Xerces provider (selected when Xerces is on the classpath) and the Android provider are not affected.\n\nApplications are advised to upgrade to `0.1.2`, which fixes the defect. As a workaround add Apache Xerces (`xercesImpl`) to the classpath so the library selects its unaffected Xerces provider.\n\n### Acknowledgements\n\nThe maintainer thank the following people for finding, reporting, and helping to remediate this issue:\n\n- Finders: Ta Duc Thien and Duc Anh Nguyen (Danzation)\n- Remediation developer: Ta Duc Thien\n- Tooling: Claude Code (Anthropic), Claude Opus 4.8",
  "id": "GHSA-xm28-xvqc-gxxg",
  "modified": "2026-10-02T18:27:17Z",
  "published": "2026-10-02T18:27:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/security/advisories/GHSA-xm28-xvqc-gxxg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/commit/2fa042c44931b0a4ddd585d62b97a8a987efd6c6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/commit/e5febc6039ed4b0088245acb80ed7d6d6a7f5537"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/copernik-eu/copernik-xml-factory"
    },
    {
      "type": "WEB",
      "url": "https://github.com/copernik-eu/copernik-xml-factory/releases/tag/v0.1.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Copernik XML Factory (stock JDK provider) has Improper restriction of XInclude resource resolution"
}

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.

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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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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.
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Action not permitted

CVE-2026-61586 (GCVE-0-2026-61586)

FKIE_CVE-2026-61586

GHSA-XM28-XVQC-GXXG

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