RLSA-2026:81522
Important: pcre2 security update
Published Oct 14, 2026 · updated Oct 14, 2026
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.
Code
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Timeline
Detection, updates, and resolution for this record.
Oct 14, 2026 · OSV.dev
Detected
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 fall
Oct 14, 2026 · OSV.dev
Fix available
pcre2 fixed in 0:10.44-1.5.el10_2
Oct 14, 2026 · OSV.dev
Fix available
pcre2 fixed in 0:10.44-1.5.el10_2
Oct 14, 2026 · OSV.dev
Updated
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 fall
Affected
- Rocky Linux:10 pcre20 → 0:10.44-1.5.el10_2