Is there a public exploit for CVE-2026-61586?

No public exploit for CVE-2026-61586 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-61586?

CVE-2026-61586 scores CVSS 8.2 (v4.0), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.36%.

What does CVE-2026-61586 affect?

CVE-2026-61586 affects copernik-eu copernik-xml-factory.

8.2 High

Copernik XML Factory provides secure-by-default JAXP factory creation for Java.

CVE-2026-61586

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.

Assessment

CVSS: 8.2 (v4.0)
Severity: High
EPSS: 0.36% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 5 November 2026
Affected: copernik-eu · copernik-xml-factory
Assigner: GitHub_M

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

At the source

EUVD (ENISA)

References

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