Is CVE-2026-89157 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-89157?

CVE-2026-89157 has a CVSS v3 severity of MEDIUM (5.7).

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Description

PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.