Unauthenticated file read via external entity resolution
Published Aug 31, 2026 · Updated Sep 4, 2026
XXE in RESTEasy SourceProvider allows remote attackers to read server files without authentication through crafted XML responses. SourceProvider.writeTo() creates a SAXParser without disabling external entities, then serializes resolved file contents into the response. Exposure requires an XML endpoint that returns Source or StreamSource; the reported consequence is server-file disclosure.
Summary
What happened
XXE in RESTEasy SourceProvider allows remote attackers to read server files without authentication through crafted XML responses. SourceProvider.writeTo() creates a SAXParser without disabling external entities, then serializes resolved file contents into the response. Exposure requires an XML endpoint that returns Source or StreamSource; the reported consequence is server-file disclosure.
The record
- CVE
- CVE-2026-17615
- Published
- Aug 31, 2026
- Updated
- Sep 4, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat build of Apache Camel 4 for Quarkus 3
- Classifications
- CWE-611, T1005, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 31, 2026CVE publishedPublication date reported by the CVE source.
- Sep 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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