Vulnerability-Lookup

GHSA-F596-WHHP-79R4

Vulnerability from github – Published: 2026-09-30 15:35 – Updated: 2026-09-30 15:35

Summary

@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages

Details

Impact

If an application method handler crashes, the error message is included in the status message sent to the client. This can leak to the client any sensitive data that may be included in the error message. This impacts anyone using @grpc/grpc-js to run servers.

Patches

This vulnerability is fixed in 1.13.6 and 1.14.5.

Workarounds

This can be avoided by using a top-level error handler in method handlers to strip out sensitive error information.

Severity

3.7 (Low)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@grpc/grpc-js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@grpc/grpc-js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.14.0"
            },
            {
              "fixed": "1.14.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-101915"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-550"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-30T15:35:41Z",
    "nvd_published_at": "2026-09-28T20:17:09Z",
    "severity": "LOW"
  },
  "details": "### Impact\nIf an application method handler crashes, the error message is included in the status message sent to the client. This can leak to the client any sensitive data that may be included in the error message. This impacts anyone using `@grpc/grpc-js` to run servers.\n\n### Patches\nThis vulnerability is fixed in 1.13.6 and 1.14.5.\n\n### Workarounds\nThis can be avoided by using a top-level error handler in method handlers to strip out sensitive error information.",
  "id": "GHSA-f596-whhp-79r4",
  "modified": "2026-09-30T15:35:41Z",
  "published": "2026-09-30T15:35:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/security/advisories/GHSA-f596-whhp-79r4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101915"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/commit/350de32860428cc62473a00bee4035360690ffea"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/commit/7c5c5181159c6ddd292805881ef2cdec29bb475f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/commit/e8329b122ca99ba10877e990c2f6edd40224fd0d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/grpc/grpc-node"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.13.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.14.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages"
}

CVE-2026-101915 (GCVE-0-2026-101915)

Vulnerability from cvelistv5 – Published: 2026-09-28 19:48 – Updated: 2026-09-28 19:48

Title

@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages

Summary

@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, when an application method handler throws an uncaught error, the server includes its error message in the status message sent to the client. The thrown error message is transmitted to the client, causing sensitive information disclosure when the message contains sensitive data. This issue is fixed in versions 1.13.6 and 1.14.5.

Severity

3.7 (Low)


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

CWE

CWE-550 - Server-generated Error Message Containing Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

6 references

URL	Tags
https://github.com/grpc/grpc-node/security/adviso…	x_refsource_CONFIRM
https://github.com/grpc/grpc-node/commit/350de328…	x_refsource_MISC
https://github.com/grpc/grpc-node/commit/7c5c5181…	x_refsource_MISC
https://github.com/grpc/grpc-node/commit/e8329b12…	x_refsource_MISC
https://github.com/grpc/grpc-node/releases/tag/@g…	x_refsource_MISC
https://github.com/grpc/grpc-node/releases/tag/@g…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
grpc	grpc-node	Affected: < 1.13.6 Affected: >= 1.14.0, < 1.14.5

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "grpc-node",
          "vendor": "grpc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.13.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.14.0, \u003c 1.14.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, when an application method handler throws an uncaught error, the server includes its error message in the status message sent to the client. The thrown error message is transmitted to the client, causing sensitive information disclosure when the message contains sensitive data. This issue is fixed in versions 1.13.6 and 1.14.5."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-550",
              "description": "CWE-550: Server-generated Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-28T19:48:09.860Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/grpc/grpc-node/security/advisories/GHSA-f596-whhp-79r4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/grpc/grpc-node/security/advisories/GHSA-f596-whhp-79r4"
        },
        {
          "name": "https://github.com/grpc/grpc-node/commit/350de32860428cc62473a00bee4035360690ffea",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-node/commit/350de32860428cc62473a00bee4035360690ffea"
        },
        {
          "name": "https://github.com/grpc/grpc-node/commit/7c5c5181159c6ddd292805881ef2cdec29bb475f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-node/commit/7c5c5181159c6ddd292805881ef2cdec29bb475f"
        },
        {
          "name": "https://github.com/grpc/grpc-node/commit/e8329b122ca99ba10877e990c2f6edd40224fd0d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-node/commit/e8329b122ca99ba10877e990c2f6edd40224fd0d"
        },
        {
          "name": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.13.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.13.6"
        },
        {
          "name": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.14.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.14.5"
        }
      ],
      "source": {
        "advisory": "GHSA-f596-whhp-79r4",
        "discovery": "UNKNOWN"
      },
      "title": "@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-101915",
    "datePublished": "2026-09-28T19:48:09.860Z",
    "dateReserved": "2026-09-28T15:55:37.907Z",
    "dateUpdated": "2026-09-28T19:48:09.860Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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