Bug 2555391

Summary:	CVE-2026-110756 perl-Text-CSV_XS: Text::CSV_XS: Data corruption via invalid UTF-8 byte sequences [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Ganesh <gnaik>
Component:	perl-Text-CSV_XS	Assignee:	Paul Howarth <paul>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel10	CC:	anon.amish, mspacek, paul, perl-devel, xavier
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["95ec0d19-2a0b-4dac-b605-a023a7244d83"]}
Fixed In Version:	perl-Text-CSV_XS-1.65-1.el10_4 perl-Text-CSV_XS-1.65-1.el10_2 perl-Text-CSV_XS-1.65-1.el10_3 perl-Text-CSV_XS-1.65-1.el9 perl-Text-CSV_XS-1.65-1.el8	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-10-24 00:30:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2554499

Description Ganesh 2026-10-19 05:34:32 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print.

When a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected.

The next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field.

Comment 1 Fedora Update System 2026-10-19 07:26:01 UTC

FEDORA-EPEL-2026-1fb2093be8 (perl-Text-CSV_XS-1.65-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-1fb2093be8

Comment 2 Fedora Update System 2026-10-19 07:28:03 UTC

FEDORA-EPEL-2026-a6a8c9862b (perl-Text-CSV_XS-1.65-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-a6a8c9862b

Comment 3 Fedora Update System 2026-10-19 07:29:43 UTC

FEDORA-EPEL-2026-a59a080f4e (perl-Text-CSV_XS-1.65-1.el10_2) has been submitted as an update to Fedora EPEL 10.2.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-a59a080f4e

Comment 4 Fedora Update System 2026-10-19 07:31:40 UTC

FEDORA-EPEL-2026-937362387a (perl-Text-CSV_XS-1.65-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-937362387a

Comment 5 Fedora Update System 2026-10-19 07:33:37 UTC

FEDORA-EPEL-2026-20062595ed (perl-Text-CSV_XS-1.65-1.el8) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-20062595ed

Comment 6 Fedora Update System 2026-10-24 00:30:51 UTC

FEDORA-EPEL-2026-1fb2093be8 (perl-Text-CSV_XS-1.65-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 7 Fedora Update System 2026-10-24 15:43:44 UTC

FEDORA-EPEL-2026-1fb2093be8 (perl-Text-CSV_XS-1.65-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2026-10-24 15:56:19 UTC

FEDORA-EPEL-2026-a59a080f4e (perl-Text-CSV_XS-1.65-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-10-24 16:00:21 UTC

FEDORA-EPEL-2026-a6a8c9862b (perl-Text-CSV_XS-1.65-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-10-24 16:20:18 UTC

FEDORA-EPEL-2026-937362387a (perl-Text-CSV_XS-1.65-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-10-24 16:29:28 UTC

FEDORA-EPEL-2026-20062595ed (perl-Text-CSV_XS-1.65-1.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.