CVE-2026-8376: Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds

Overview

Severity

Medium (CVSS 5.7)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-27

Last Updated

2026-06-28

EPSS Score

0.40% (percentile: 31.9%)

Affected Products (2)

Open Source Software

• azl3 perl 5.38.2-509 on Azure Linux 3.0

Other

• 21504-17084

Revision History

• 2026-05-27: Information published.
• 2026-05-27: Information published.
• 2026-06-19: Information published.
• 2026-06-28: Information published.