pcre2 — security advisory

{
  "id": "bd14b0669c96cd658aff8b4468b615d2468df442fdb97140310cdf7859443467",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-89162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-89162",
    "summary": "In PCRE2 before 10.48, pcre2_serialize_encode might disclose two bytes to an adversary, typically in a situation where the access available to the adversary is already unsafe.",
    "evidence": "osv:UBUNTU-CVE-2026-89162",
    "products": [
      {
        "name": {
          "value": "pcre2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "10.46-1build1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "pcre2",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "10.46-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "10.46-1build1",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "low",
    "structured": {
      "id": "UBUNTU-CVE-2026-89162",
      "aliases": [
        "UBUNTU-CVE-2026-89162"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
        },
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "pcre2",
            "purl": "pkg:deb/ubuntu/pcre2?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "10.46-1build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89162.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libpcre2-16-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-32-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-8-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-posix3",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "pcre2-utils",
                "binary_version": "10.46-1build1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "pcre2",
            "purl": "pkg:deb/ubuntu/pcre2?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "10.46-1",
            "10.46-1build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89162.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libpcre2-16-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-32-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-8-0",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "libpcre2-posix3",
                "binary_version": "10.46-1build1"
              },
              {
                "binary_name": "pcre2-utils",
                "binary_version": "10.46-1build1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T13:01:16.662219081Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-89162"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-89162",
        "https://www.cve.org/CVERecord?id=CVE-2026-89162",
        "https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q7rw-r7qq-2hx6",
        "https://github.com/PCRE2Project/pcre2/commit/edc111a6831591f68b5355a08cc9df8be8f35304",
        "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-89162",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/1/score"
  },
  "source_id": "core-osv",
  "document_id": 361471,
  "published_at": "2026-09-11T05:16:00+00:00"
}