Vulnerability-Lookup

CVE-2026-19826 (GCVE-0-2026-19826)

Vulnerability from cvelistv5 – Published: 2026-08-14 13:00 – Updated: 2026-08-18 02:04

Title

alldatacenter alldata xxl-rpc Listener HessianSerializer.java Hessian2Input.readObject deserialization

Summary

A vulnerability was detected in alldatacenter alldata up to 0.6.8. This affects the function Hessian2Input.readObject of the file /serialize/impl/HessianSerializer.java of the component xxl-rpc Listener. The manipulation results in deserialization. The attack may be performed from remote. The exploit is now public and may be used. The project closed the issue report as "not planned" without any further explanation.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

7.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 02:04 UTC

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB mitre root

References

6 references

URL	Tags
https://vuldb.com/vuln/389959	vdb-entrytechnical-description
https://vuldb.com/vuln/389959/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19826	third-party-advisory
https://vuldb.com/submit/870236	third-party-advisory
https://github.com/alldatacenter/alldata/issues/832	exploitissue-tracking
https://github.com/alldatacenter/alldata/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
alldatacenter	alldata	Affected: 0.6.0 Affected: 0.6.1 Affected: 0.6.2 Affected: 0.6.3 Affected: 0.6.4 Affected: 0.6.5 Affected: 0.6.6 Affected: 0.6.7 Affected: 0.6.8 cpe:2.3:a:alldata:alldata::::::::

Credits

fakebug (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-19826

Vulnerability from fkie_nvd - Published: 2026-08-14 13:17 - Updated: 2026-08-18 02:17

Severity

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/alldatacenter/alldata/
	cna@vuldb.com	https://github.com/alldatacenter/alldata/issues/832
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-19826
	cna@vuldb.com	https://vuldb.com/submit/870236
	cna@vuldb.com	https://vuldb.com/vuln/389959
	cna@vuldb.com	https://vuldb.com/vuln/389959/cti
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/alldatacenter/alldata/issues/832

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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            {
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              "version": "0.6.6"
            },
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              "status": "affected",
              "version": "0.6.7"
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    }
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    {
      "lang": "en",
      "value": "A vulnerability was detected in alldatacenter alldata up to 0.6.8. This affects the function Hessian2Input.readObject of the file /serialize/impl/HessianSerializer.java of the component xxl-rpc Listener. The manipulation results in deserialization. The attack may be performed from remote. The exploit is now public and may be used. The project closed the issue report as \"not planned\" without any further explanation."
    }
  ],
  "id": "CVE-2026-19826",
  "lastModified": "2026-08-18T02:17:26.293",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "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",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19826",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-18T02:04:03.228451Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-14T13:17:38.333",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/alldatacenter/alldata/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/alldatacenter/alldata/issues/832"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-19826"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/870236"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/389959"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/389959/cti"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/alldatacenter/alldata/issues/832"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-FQ8P-5FJC-MW7X

Vulnerability from github – Published: 2026-08-14 15:32 – Updated: 2026-08-14 15:32

Details

Severity

7.3 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

5.5 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19826"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-14T13:17:38Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was detected in alldatacenter alldata up to 0.6.8. This affects the function Hessian2Input.readObject of the file /serialize/impl/HessianSerializer.java of the component xxl-rpc Listener. The manipulation results in deserialization. The attack may be performed from remote. The exploit is now public and may be used. The project closed the issue report as \"not planned\" without any further explanation.",
  "id": "GHSA-fq8p-5fjc-mw7x",
  "modified": "2026-08-14T15:32:49Z",
  "published": "2026-08-14T15:32:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19826"
    },
    {
      "type": "WEB",
      "url": "https://github.com/alldatacenter/alldata/issues/832"
    },
    {
      "type": "WEB",
      "url": "https://github.com/alldatacenter/alldata"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19826"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/870236"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/389959"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/389959/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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:X/AU:X/R:X/V:X/RE:X/U:X",
      "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.

Action not permitted

CVE-2026-19826 (GCVE-0-2026-19826)

FKIE_CVE-2026-19826

GHSA-FQ8P-5FJC-MW7X

Tags

Sightings

Nomenclature