Vulnerability-Lookup

CVE-2026-44289 (GCVE-0-2026-44289)

Vulnerability from cvelistv5 – Published: 2026-05-13 14:39 – Updated: 2026-05-13 18:20

Title

protobufjs: Denial of service through unbounded protobuf recursion

Summary

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.

Severity

7.5 (High)


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

CWE

CWE-674 - Uncontrolled Recursion

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/protobufjs/protobuf.js/securit…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
protobufjs	protobuf.js	Affected: < 7.5.6 Affected: >= 8.0.0, < 8.0.2

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-44289

Vulnerability from fkie_nvd - Published: 2026-05-13 16:16 - Updated: 2026-05-13 20:50

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
	security-advisories@github.com	https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288q	Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	protobufjs_project	protobufjs	*
	protobufjs_project	protobufjs	*

JSON

To clipboard

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  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*",
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    }
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  "id": "CVE-2026-44289",
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          "integrityImpact": "NONE",
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GHSA-685M-2W69-288Q

Vulnerability from github – Published: 2026-05-12 15:01 – Updated: 2026-05-14 20:35

Summary

protobuf.js: Denial of service through unbounded protobuf recursion

Details

Summary

protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields.

A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding.

Impact

An attacker who can provide protobuf binary data decoded by an application may be able to crash the process or otherwise cause decoding to fail with a stack overflow.

This affects applications that decode untrusted protobuf binary input with affected versions.

Preconditions

The application must decode protobuf binary data influenced by an attacker.
The crafted input must contain deeply nested protobuf structures, such as nested group tags or nested message fields.
The affected decoder path must process the crafted input.

Workarounds

Avoid decoding untrusted protobuf binary data with affected versions. If immediate upgrade is not possible, reject excessively nested messages at an outer protocol boundary where feasible, or isolate protobuf decoding in a process that can be safely restarted.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 7.5.5"
      },
      "package": {
        "ecosystem": "npm",
        "name": "protobufjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.5.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.1"
      },
      "package": {
        "ecosystem": "npm",
        "name": "protobufjs"
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            },
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          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44289"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-12T15:01:05Z",
    "nvd_published_at": "2026-05-13T16:16:55Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nprotobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields.\n\nA crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding.\n\n## Impact\n\nAn attacker who can provide protobuf binary data decoded by an application may be able to crash the process or otherwise cause decoding to fail with a stack overflow.\n\nThis affects applications that decode untrusted protobuf binary input with affected versions.\n\n## Preconditions\n\n- The application must decode protobuf binary data influenced by an attacker.\n- The crafted input must contain deeply nested protobuf structures, such as nested group tags or nested message fields.\n- The affected decoder path must process the crafted input.\n\n## Workarounds\n\nAvoid decoding untrusted protobuf binary data with affected versions. If immediate upgrade is not possible, reject excessively nested messages at an outer protocol boundary where feasible, or isolate protobuf decoding in a process that can be safely restarted.",
  "id": "GHSA-685m-2w69-288q",
  "modified": "2026-05-14T20:35:08Z",
  "published": "2026-05-12T15:01:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44289"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/protobufjs/protobuf.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.2"
    }
  ],
  "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"
    }
  ],
  "summary": "protobuf.js: Denial of service through unbounded protobuf recursion"
}

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.

Action not permitted

CVE-2026-44289 (GCVE-0-2026-44289)

FKIE_CVE-2026-44289

GHSA-685M-2W69-288Q

Summary

Impact

Preconditions

Workarounds

Tags

Sightings

Nomenclature