CVE intelligence

CVE-2026-89158

Vulnerability intelligence

Published Sep 11, 2026Sources checked Sep 13, 2026

6.5MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-89158 and is rated Medium severity with a CVSS score of 6.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-89158?

PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.