GHSA-5WFC-HJRC-GQ87

Vulnerability from github – Published: 2023-06-14 15:30 – Updated: 2026-05-20 22:35
VLAI?
Summary
hjson stack exhaustion vulnerability
Details

An issue was discovered hjson through 3.0.0 allows attackers to cause a denial of service or other unspecified impacts via crafted objects that deeply nested structures.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.0.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.hjson:hjson"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "laktak/hjson"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/hjson/hjson-go/v4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-34620"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-787",
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-14T20:38:48Z",
    "nvd_published_at": "2023-06-14T14:15:10Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered hjson through 3.0.0 allows attackers to cause a denial of service or other unspecified impacts via crafted objects that deeply nested structures.",
  "id": "GHSA-5wfc-hjrc-gq87",
  "modified": "2026-05-20T22:35:10Z",
  "published": "2023-06-14T15:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34620"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-java/issues/24"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-cpp/pull/54"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-go/pull/67"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-php/pull/45"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-go/commit/326599cebc6ef759892f473bf1439b98466a99fa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hjson/hjson-php/commit/2d1b8b4b158a8d841f3a228f267c7cd84fe5a4fa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "hjson stack exhaustion vulnerability"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.