Vulnerability-Lookup

CVE-2026-88032 (GCVE-0-2026-88032)

Vulnerability from cvelistv5 – Published: 2026-09-10 18:02 – Updated: 2026-09-10 23:36

Title

Application denial of service via cancellation race in reactive client-side encryption in MongoDB Java Driver

Summary

A use-after-free in the reactive client-side encryption component of the MongoDB Java Driver can cause native resources to be freed while an affected encrypted operation is still using them when the operation is cancelled. A party able to cause such an operation to be cancelled may cause the hosting application process to terminate. Reaching the issue requires an affected reactive encryption configuration that retrieves KMS credentials on demand.

Severity

8.2 (High)


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

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-10 18:28 UTC

CWE

CWE-416 - Use After Free

Assigner

mongodb mitre root

References

1 reference

URL	Tags
https://jira.mongodb.org/browse/JAVA-6276

Impacted products

3 products

Vendor	Product	Version	CPE status
MongoDB	Java Driver	Affected: 4.2.0 , < 5.11.1 (semver)	guessed
MongoDB	org.mongodb:mongodb-crypt Maven package	Affected: 1.4.0 , < 5.11.1 (semver)	guessed
MongoDB	org.mongodb:mongodb-driver-reactivestreams Maven package	Affected: 4.6.0 , < 5.11.1 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-88032

Vulnerability from fkie_nvd - Published: 2026-09-10 19:17 - Updated: 2026-09-11 00:19

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	cna@mongodb.com	https://jira.mongodb.org/browse/JAVA-6276

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "defaultStatus": "unaffected",
          "product": "Java Driver",
          "vendor": "MongoDB",
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  "id": "CVE-2026-88032",
  "lastModified": "2026-09-11T00:19:58.350",
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GHSA-38PQ-38PP-9F4M

Vulnerability from github – Published: 2026-09-10 21:31 – Updated: 2026-09-10 21:31

Details

Severity

5.9 (Medium)


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

8.2 (High)


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

Show details on source website

JSON

To clipboard

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    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-10T19:17:40Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free in the reactive client-side encryption component of the MongoDB Java Driver can cause native resources to be freed while an affected encrypted operation is still using them when the operation is cancelled. A party able to cause such an operation to be cancelled may cause the hosting application process to terminate. Reaching the issue requires an affected reactive encryption configuration that retrieves KMS credentials on demand.",
  "id": "GHSA-38pq-38pp-9f4m",
  "modified": "2026-09-10T21:31:35Z",
  "published": "2026-09-10T21:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88032"
    },
    {
      "type": "WEB",
      "url": "https://jira.mongodb.org/browse/JAVA-6276"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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-2026-88032 (GCVE-0-2026-88032)

FKIE_CVE-2026-88032

GHSA-38PQ-38PP-9F4M

Tags

Sightings

Nomenclature