Vulnerability-Lookup

CVE-2026-87962 (GCVE-0-2026-87962)

Vulnerability from cvelistv5 – Published: 2026-09-10 10:52 – Updated: 2026-09-10 12:56

Title

t-digest 3.1 through 3.3 Denial of Service via Unvalidated Length Fields in MergingDigest.fromBytes

Summary

t-digest versions 3.1 through 3.3 contain a denial of service vulnerability in MergingDigest.fromBytes that fails to validate length and capacity fields from serialized data. Attackers can supply crafted serialized digests with mismatched header fields to trigger ArrayIndexOutOfBoundsException or NegativeArraySizeException, aborting the parsing thread.

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:N

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-10 12:56 UTC

CWE

CWE-1284 - Improper Validation of Specified Quantity in Input

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/tdunning/t-digest/issues/227	issue-tracking
https://github.com/tdunning/t-digest/blob/7905f3d…	technical-description
https://github.com/tdunning/t-digest	product
https://www.vulncheck.com/advisories/t-digest-3.1…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
tdunning	t-digest	Affected: 3.1 , ≤ 3.3 (custom)	guessed

Date Public

2026-08-14 00:00

Credits

Yu Bao, PayPal Cyber Security Team

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-87962

Vulnerability from fkie_nvd - Published: 2026-09-10 11:17 - Updated: 2026-09-10 15:53

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/tdunning/t-digest
	disclosure@vulncheck.com	https://github.com/tdunning/t-digest/blob/7905f3d2ad18e7d7176811147d1316a3e23d7061/core/src/main/java/com/tdunning/math/stats/MergingDigest.java
	disclosure@vulncheck.com	https://github.com/tdunning/t-digest/issues/227
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/t-digest-3.1-through-3.3-denial-of-service-via-unvalidated-length-fields-in-mergingdigest-frombytes
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/tdunning/t-digest/issues/227

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/tdunning/t-digest/blob/7905f3d2ad18e7d7176811147d1316a3e23d7061/core/src/main/java/com/tdunning/math/stats/MergingDigest.java"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/tdunning/t-digest/issues/227"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/t-digest-3.1-through-3.3-denial-of-service-via-unvalidated-length-fields-in-mergingdigest-frombytes"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/tdunning/t-digest/issues/227"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1284"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-P7MW-7CFX-CR67

Vulnerability from github – Published: 2026-09-10 12:31 – Updated: 2026-09-10 12:31

Details

Severity

7.5 (High)


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

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:N

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-87962"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1284"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-10T11:17:07Z",
    "severity": "HIGH"
  },
  "details": "t-digest versions 3.1 through 3.3 contain a denial of service vulnerability in MergingDigest.fromBytes that fails to validate length and capacity fields from serialized data. Attackers can supply crafted serialized digests with mismatched header fields to trigger ArrayIndexOutOfBoundsException or NegativeArraySizeException, aborting the parsing thread.",
  "id": "GHSA-p7mw-7cfx-cr67",
  "modified": "2026-09-10T12:31:20Z",
  "published": "2026-09-10T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87962"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tdunning/t-digest/issues/227"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tdunning/t-digest"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tdunning/t-digest/blob/7905f3d2ad18e7d7176811147d1316a3e23d7061/core/src/main/java/com/tdunning/math/stats/MergingDigest.java"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/t-digest-3.1-through-3.3-denial-of-service-via-unvalidated-length-fields-in-mergingdigest-frombytes"
    }
  ],
  "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"
    },
    {
      "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: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-2026-87962 (GCVE-0-2026-87962)

FKIE_CVE-2026-87962

GHSA-P7MW-7CFX-CR67

Tags

Sightings

Nomenclature