FKIE_CVE-2026-110682

Vulnerability from fkie_nvd - Published: 2026-10-19 19:17 - Updated: 2026-10-19 20:50
Severity
Summary
Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level numbers in incr_parse. allow_nonref is enabled by default and incr_parse inherits it. A top-level number, true, false or null has no closing delimiter, so the incremental parser decodes whatever has arrived. The bytes 12 decode as one value when read together, but as 1 and then 2 when split across two reads. A peer that can influence read boundaries can change how many messages a stream consumer decodes and what values they carry.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/rurban/Cpanel-JSON-XS/commit/f632d6690d82c14cd2d76d648805325201c52b83.patch
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Cpanel::JSON::XS"
          ],
          "packageName": "Cpanel-JSON-XS",
          "packageURL": "pkg:cpan/Cpanel-JSON-XS",
          "programFiles": [
            "XS.xs"
          ],
          "programRoutines": [
            {
              "name": "Cpanel::JSON::XS::incr_parse"
            }
          ],
          "repo": "https://github.com/rurban/Cpanel-JSON-XS",
          "versions": [
            {
              "lessThan": "4.80",
              "status": "affected",
              "version": "4.42",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level numbers in incr_parse.\n\nallow_nonref is enabled by default and incr_parse inherits it. A top-level number, true, false or null has no closing delimiter, so the incremental parser decodes whatever has arrived. The bytes 12 decode as one value when read together, but as 1 and then 2 when split across two reads.\n\nA peer that can influence read boundaries can change how many messages a stream consumer decodes and what values they carry."
    }
  ],
  "id": "CVE-2026-110682",
  "lastModified": "2026-10-19T20:50:17.967",
  "metrics": {},
  "published": "2026-10-19T19:17:21.880",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/f632d6690d82c14cd2d76d648805325201c52b83.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.80/changes"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-436"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}



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