Bug 2569603 (CVE-2026-125113)

Summary: CVE-2026-125113 xrootd: xrootd: Information disclosure via path traversal in directory listing requests
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in xrootd. An unauthenticated remote attacker can trigger information disclosure by sending a directory listing request with a path ending in parent-directory components, such as "/..". Due to improper path validation, this flaw allows an attacker to bypass export scope restrictions and enumerate file and directory names in the parent directory outside the authorized export path.
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Description OSIDB Bzimport 2026-11-10 13:11:10 UTC 
The XRootD project provides a high-performance, fault-tolerant, and secure solution for handling large amounts of data distributed across multiple storage resources. Prior to version 5.9.2, XRootD's rpCheck() function in src/XrdXrootd/XrdXrootdXeq.cc rejects a parent-directory component only when two dots are followed by a slash and does not reject a terminal two-dot component. An unauthenticated attacker can append /.. to an exported path in xrdfs ls or an HTTP PROPFIND request, bypass the all.export directory scope, and cause directory and filename enumeration in the parent directory under oss.localroot. The demonstrated vector does not permit file download or disclose file contents. This issue is fixed in version 5.9.2.