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Advisory severityHigh7.7Apache Software Foundation

High [CVE-2026-82386] Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a weblog administrator to read files readable by the Roller process and reach internal network addresses by importing a crafted OPML document, because the bookmark import parser does not disable external entity resolution

This high-severity Apache Software Foundation advisory covers CVE-2026-82386 affecting Apache Roller.

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CVE-2026-82386 Source published Source updated

VulniPulse record published Record updated

Affected products & platforms
Apache Software FoundationUnclassified
Open source advisory

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Summary

Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a weblog administrator to read files readable by the Roller process and reach internal network addresses by importing a crafted OPML document, because the bookmark import parser does not disable external entity resolution.

No non-default configuration is required; the import is reached through the administrator bookmark-import action. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which uses a hardened parser that disables external entities and document type declarations.

Affected versions
  • Apache Roller 6.1.5

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

Fixed versions
  • 6.1.6

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Users are recommended to upgrade to Apache Roller 6.1.6 or later, which uses a hardened parser that disables external entities and document type declarations.
Temporary workarounds
  • Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a weblog administrator to read files readable by the Roller process and reach internal network addresses by importing a crafted OPML document, because the bookmark import parser does not disable external entity resolution.

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

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