CVE-2026-89161: In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.

Overview

Severity

High (CVSS 7.4)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-12

Last Updated

2026-09-17

EPSS Score

0.13% (percentile: 2.3%)

Affected Products (4)

Other

• 21840-17084
• 21709-17084
• 21644-17084
• 21752-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-12: Information published.
• 2026-09-15: Information published.
• 2026-09-17: Information published.