Bug 2554509 (CVE-2026-110752) - CVE-2026-110752 perl-Text-CSV_XS: perl-Text-CSV_XS: Denial of Service via excessive memory allocation in fragment selector
Summary: CVE-2026-110752 perl-Text-CSV_XS: perl-Text-CSV_XS: Denial of Service via exc...
Keywords:
Status: NEW
Alias: CVE-2026-110752
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2555370 2555371
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-16 22:22 UTC by OSIDB Bzimport
Modified: 2026-10-19 05:21 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-16 22:22:28 UTC
Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by allocating one entry per index of an RFC 7111 selector in fragment.

fragment expands a row= or col= selector into an array with one element per selected index before it reads any data, and it does not clamp an explicit end column in a cell= selector to the row. Only the syntax and order of the ranges are checked, so row=1-400000000 on a two-line file allocates 400 million elements.

An application that passes a request-supplied fragment to fragment or csv can be made to exhaust memory, which ends the process with an Out of memory error that eval cannot catch.


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