RLSA-2026:81532

RLSA-2026:81532 · Important: pcre2 security update

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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: Out-of-bounds read via invalid UTF data during JIT fallback (CVE-2026-89156) * pcre2: PCRE2: Out-of-bounds write via large pattern input (CVE-2026-89157) * pcre2: PCRE2: Denial of Service via out-of-bounds read during invalid UTF matching (CVE-2026-89160) * PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158) * 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.

CVSS 8.2 · High · Fix available

Published

2026-10-14T06:30:05.473043Z

Updated

2026-10-14T07:00:02.773779734Z

Stack: system

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