RHSA-2026:82845 — Security Advisory

Red Hat Security Advisory: pcre2 security update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · October 14, 2026

Updated · November 4, 2026

Topic

An update for pcre2 is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl.

Security Fix(es):

  • pcre2: PCRE2: Out-of-bounds write allows arbitrary code execution via crafted regular expressions (CVE-2026-86145)

  • pcre2: PCRE2: Memory corruption vulnerability in pcre2_jit_match (CVE-2026-89161)

  • pcre2: pcre2: Out-of-bounds write via crafted regular expression (CVE-2026-103111)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Related CVEs

RHSA-2026:82845 — Red Hat Security Advisory: pcre2 security update | PulseLinux