Vulnerability in Pcre Pcre2

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.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Pcre Pcre2

Weakness classification (CWE)

CWE-590

References

Frequently asked questions

What is CVE-2026-89161?: CVE-2026-89161 is a high-severity vulnerability in Pcre Pcre2, classified under CWE-590. CVSS score: 7.4/10. Published 2026-09-11.
How severe is CVE-2026-89161?: High severity. CVSS v3 base score is 7.4 out of 10.