CVE-2026-6103: Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

Overview

Severity

Medium (CVSS 4)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-27

Last Updated

2026-09-29

Affected Products (1)

Other

• 21709-17084

Revision History

• 2026-09-27: Information published.
• 2026-09-29: Information published.