{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Data-RoaringBitmap-Shared",
          "product": "Data::RoaringBitmap::Shared",
          "programFiles": [
            "roaring.h"
          ],
          "programRoutines": [
            {
              "name": "rb_contains_locked"
            }
          ],
          "repo": "https://github.com/vividsnow/perl5-data-roaringbitmap-shared",
          "vendor": "EGOR",
          "versions": [
            {
              "lessThan": "0.02",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Data::RoaringBitmap::Shared versions before 0.02 for Perl allow an out-of-bounds read via an unvalidated container offset and cardinality in rb_contains_locked.\n\nThe attach-time validator rb_validate_header checks the header scalars and region layout against the file size, but does not validate the bucket contents it then trusts. rb_contains_locked forms a container pointer as pool + container_off * 8192 from a raw file-stored offset and then searches over a file-stored cardinality, neither bounded against the container pool capacity or the fixed 8192-byte slot size.\n\nA local peer that can write the backing file can leave the header valid while poisoning a bucket, so the next membership query dereferences a file-controlled wild pointer and scans a file-controlled count, reading adjacent memory or crashing the process."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-21T19:04:04.057Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "url": "https://metacpan.org/release/EGOR/Data-RoaringBitmap-Shared-0.02/diff/EGOR/Data-RoaringBitmap-Shared-0.01#roaring.h"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/EGOR/Data-RoaringBitmap-Shared-0.02/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to Data::RoaringBitmap::Shared 0.02 or later, which clamps an out-of-range container offset to the empty sentinel and caps the cardinality at the slot capacity."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Data::RoaringBitmap::Shared versions before 0.02 for Perl allow an out-of-bounds read via an unvalidated container offset and cardinality in rb_contains_locked",
      "workarounds": [
        {
          "lang": "en",
          "value": "For deployments that cannot upgrade to 0.02, place the backing file in a directory writable only by the owning user, so a local peer cannot tamper with the buckets the query path reads."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-59143",
    "datePublished": "2026-07-21T19:04:04.057Z",
    "dateReserved": "2026-07-02T16:24:17.912Z",
    "dateUpdated": "2026-07-21T19:04:04.057Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}