Vulnerability-Lookup

CVE-2026-4735 (GCVE-0-2026-4735)

Vulnerability from cvelistv5 – Published: 2026-03-24 03:08 – Updated: 2026-03-24 14:36

Title

A stack overflow and DoS vulnerability in DTStack/chunjun

Summary

Deserialization of Untrusted Data vulnerability in DTStack chunjun (‎chunjun-core/src/main/java/com/dtstack/chunjun/util modules). This vulnerability is associated with program files GsonUtil.Java. This issue affects chunjun: before 1.16.1.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-24 14:36 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

GovTech CSG

References

1 reference

URL	Tags
https://github.com/DTStack/chunjun/pull/1939	patch

Impacted products

1 product

Vendor	Product	Version	CPE status
DTStack	chunjun	Affected: 0 , < 1.16.1 (git)	guessed

Credits

TITAN Team (titancaproject@gmail.com)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-4735

Vulnerability from fkie_nvd - Published: 2026-03-24 04:17 - Updated: 2026-06-17 10:57

Severity

8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber

Summary

References

	URL	Tags
	cve_disclosure@tech.gov.sg	https://github.com/DTStack/chunjun/pull/1939

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/DTStack/chunjun",
          "defaultStatus": "affected",
          "modules": [
            "\u200echunjun-core/src/main/java/com/dtstack/chunjun/util"
          ],
          "product": "chunjun",
          "programFiles": [
            "GsonUtil.java"
          ],
          "vendor": "DTStack",
          "versions": [
            {
              "lessThan": "1.16.1",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
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    }
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  "cveTags": [],
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    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de Deserializaci\u00f3n de Datos No Confiables en DTStack chunjun (m\u00f3dulos chunjun-core/src/main/java/com/dtstack/chunjun/util). Esta vulnerabilidad est\u00e1 asociada con los archivos de programa GsonUtil.Java.\n\nEste problema afecta a chunjun: anterior a 1.16.1."
    }
  ],
  "id": "CVE-2026-4735",
  "lastModified": "2026-06-17T10:57:08.700",
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          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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GHSA-Q9JC-XQ58-M52X

Vulnerability from github – Published: 2026-03-24 06:31 – Updated: 2026-03-24 06:31

Details

Deserialization of Untrusted Data vulnerability in DTStack chunjun (‎chunjun-core/src/main/java/com/dtstack/chunjun/util modules). This vulnerability is associated with program files GsonUtil.Java.

This issue affects chunjun: before 1.16.1.

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4735"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-24T04:17:26Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-q9jc-xq58-m52x",
  "modified": "2026-03-24T06:31:12Z",
  "published": "2026-03-24T06:31:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4735"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DTStack/chunjun/pull/1939"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber",
      "type": "CVSS_V4"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-4735 (GCVE-0-2026-4735)

FKIE_CVE-2026-4735

GHSA-Q9JC-XQ58-M52X

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Related by attack behaviour