FKIE_CVE-2026-59141

Vulnerability from fkie_nvd - Published: 2026-07-21 19:17 - Updated: 2026-07-21 19:35
Severity
Summary
Data::RadixTree::Shared versions before 0.02 for Perl allow an out-of-bounds read via unvalidated node and arena indices in rdx_find_locked. The attach-time validator rdx_validate_header checks the header scalars and region layout against the file size, but does not validate the node records it then trusts. rdx_find_locked indexes nodes[cur].children[k] and reads each node's label_off and label_len raw from the mmap'd segment, none bounded against the node count or the arena size. A local peer that can write the backing file can leave the header valid while poisoning the node records, so a lookup dereferences an out-of-bounds node or arena index, reading adjacent memory or crashing the process.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/EGOR/Data-RadixTree-Shared-0.02/changes
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/EGOR/Data-RadixTree-Shared-0.02/diff/EGOR/Data-RadixTree-Shared-0.01#radix.h
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Data-RadixTree-Shared",
          "product": "Data::RadixTree::Shared",
          "programFiles": [
            "radix.h"
          ],
          "programRoutines": [
            {
              "name": "rdx_find_locked"
            }
          ],
          "repo": "https://github.com/vividsnow/perl5-data-radixtree-shared",
          "vendor": "EGOR",
          "versions": [
            {
              "lessThan": "0.02",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Data::RadixTree::Shared versions before 0.02 for Perl allow an out-of-bounds read via unvalidated node and arena indices in rdx_find_locked.\n\nThe attach-time validator rdx_validate_header checks the header scalars and region layout against the file size, but does not validate the node records it then trusts. rdx_find_locked indexes nodes[cur].children[k] and reads each node\u0027s label_off and label_len raw from the mmap\u0027d segment, none bounded against the node count or the arena size.\n\nA local peer that can write the backing file can leave the header valid while poisoning the node records, so a lookup dereferences an out-of-bounds node or arena index, reading adjacent memory or crashing the process."
    }
  ],
  "id": "CVE-2026-59141",
  "lastModified": "2026-07-21T19:35:17.130",
  "metrics": {},
  "published": "2026-07-21T19:17:11.697",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/EGOR/Data-RadixTree-Shared-0.02/changes"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/EGOR/Data-RadixTree-Shared-0.02/diff/EGOR/Data-RadixTree-Shared-0.01#radix.h"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}



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