Vulnerability-Lookup

GHSA-RQPP-92MG-PCVC

Vulnerability from github – Published: 2026-09-22 18:33 – Updated: 2026-09-22 21:31

Details

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Calcite Avatica. Plugin instantiation (via AvaticaUtils#instantiatePlugin and other methods) initializes arbitrary classes via unrestricted calls to Class.forName(String) which by default triggers initialization. This may lead to the execution of static initializer blocks in arbitrary classes present in the classpath. The instantiation APIs should initialize and instantiate only classes implementing the specified plugin interface passed as input in conjunction with the desired classname. At the moment of writing, there are no well-known or widely used classes with dangerous static initializer blocks so the severity is low.

This issue affects Apache Calcite Avatica: before 1.29.0.

Users are recommended to upgrade to version 1.29.0, which fixes the issue.

Severity

8.8 (High)


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

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  "affected": [],
  "aliases": [
    "CVE-2026-70410"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-470"
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-22T16:17:52Z",
    "severity": "HIGH"
  },
  "details": "Use of Externally-Controlled Input to Select Classes or Code (\u0027Unsafe Reflection\u0027) vulnerability in Apache Calcite Avatica. Plugin instantiation (via AvaticaUtils#instantiatePlugin and other methods) initializes arbitrary classes via unrestricted calls to Class.forName(String) which by default triggers initialization. This may lead to the execution of static initializer blocks in arbitrary classes present in the classpath. The instantiation APIs should initialize and instantiate only classes implementing the specified plugin interface passed as input in conjunction with the desired classname. At the moment of writing, there are no well-known or widely used classes with dangerous static initializer blocks so the severity is low.\n\n\n\nThis issue affects Apache Calcite Avatica: before 1.29.0.\n\n\n\nUsers are recommended to upgrade to version 1.29.0, which fixes the issue.",
  "id": "GHSA-rqpp-92mg-pcvc",
  "modified": "2026-09-22T21:31:17Z",
  "published": "2026-09-22T18:33:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70410"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/07vwvsnbskhf5kvksn5t5l9qjozv2rk4"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-70410 (GCVE-0-2026-70410)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:39 – Updated: 2026-09-22 19:19

Title

Apache Calcite Avatica: Unrestricted class initialization when instantiating plugins

Summary

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 19:18 UTC

CWE

CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Assigner

apache mitre root

References

1 reference

URL	Tags
https://lists.apache.org/thread/07vwvsnbskhf5kvks…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Calcite Avatica	Affected: 0 , < 1.29.0 (semver)

Credits

tinyb0y ReturnZero n0mi1k Yan Xu

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              "confidentialityImpact": "HIGH",
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              "scope": "UNCHANGED",
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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.

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.
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GHSA-RQPP-92MG-PCVC

CVE-2026-70410 (GCVE-0-2026-70410)

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