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Important: pcre2 security update

Type: advisorySources: OSV

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 write via large pattern input (CVE-2026-89157) * PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158) * 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.

Products
pcre2
Affected versions
Not specified
Fixed versions
0:10.32-4.el8_10
CVEs
CVE-2026-103111, CVE-2026-86145, CVE-2026-89157, CVE-2026-89158
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 11:47 UTC · Revision 1

Source evidence

Important: pcre2 security update

core-osv · Original source

Published 14 Oct 2026, 06:26 UTC

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 write via large pattern input (CVE-2026-89157) * PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158) * 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.

osv:RLSA-2026:81613

pcre2

Fixed versions: 0:10.32-4.el8_10

Complete source record
{
  "id": "0739b1213908cfb9e783e14f2484e6e893b1be821a870cff7c30422a8176cbb4",
  "url": "https://osv.dev/vulnerability/RLSA-2026%3A81613",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Important: pcre2 security update",
    "summary": "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 write via large pattern input (CVE-2026-89157) * PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158) * 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.",
    "evidence": "osv:RLSA-2026:81613",
    "products": [
      {
        "name": {
          "value": "pcre2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:10.32-4.el8_10",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RLSA-2026:81613",
      "aliases": [
        "RLSA-2026:81613"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:10.32-4.el8_10"
                }
              ],
              "database_specific": {
                "yum_repository": "BaseOS"
              }
            }
          ],
          "package": {
            "name": "pcre2",
            "purl": "pkg:rpm/rocky-linux/pcre2?distro=rocky-linux-8&epoch=0",
            "ecosystem": "Rocky Linux:8"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:81613.json"
          }
        }
      ],
      "modified": "2026-10-14T07:00:02.763620140Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-103111",
        "CVE-2026-86145",
        "CVE-2026-89157",
        "CVE-2026-89158"
      ],
      "references": [
        "https://errata.rockylinux.org/RLSA-2026:81613",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2528993",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2531744",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2531746",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2543797",
        "https://access.redhat.com/errata/RHSA-2026:81613"
      ],
      "provider_metadata": {
        "license": "CC-BY-4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "source_advisory": "RHSA-2026:81613"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103111",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-86145",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89157",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89158",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 315288,
  "published_at": "2026-10-14T06:26:38.77002+00:00"
}