Vulnerability-Lookup

GHSA-689V-6XWF-5JF3

Vulnerability from github – Published: 2026-02-18 22:34 – Updated: 2026-02-27 20:38

Summary

Go Ethereum affected by DoS via malicious p2p message

Details

Impact

An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later.

Patches

The issue is resolved in the v1.17.0 release.

Credit

This issue was reported to the Ethereum Foundation Bug Bounty Program by @revofusion

Severity

6.9 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ethereum/go-ethereum"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.17.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-26313"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-18T22:34:49Z",
    "nvd_published_at": "2026-02-19T21:18:31Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nAn attacker can cause high memory usage by sending a specially-crafted p2p message.\nMore details to be released later.\n\n### Patches\n\nThe issue is resolved in the v1.17.0 release. \n\n### Credit\n\nThis issue was reported to the Ethereum Foundation Bug Bounty Program by @revofusion",
  "id": "GHSA-689v-6xwf-5jf3",
  "modified": "2026-02-27T20:38:21Z",
  "published": "2026-02-18T22:34:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26313"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ethereum/go-ethereum"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4508"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Go Ethereum affected by DoS via malicious p2p message"
}

CVE-2026-26313 (GCVE-0-2026-26313)

Vulnerability from cvelistv5 – Published: 2026-02-19 21:07 – Updated: 2026-02-20 19:53

Title

Go Ethereum affected by DoS via malicious p2p message

Summary

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release.

Severity

6.9 (Medium)


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

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ethereum/go-ethereum/security/…	x_refsource_CONFIRM
https://github.com/ethereum/go-ethereum/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ethereum	go-ethereum	Affected: < 1.17.0

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-26313",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-20T19:51:54.100199Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-20T19:53:54.846Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "go-ethereum",
          "vendor": "ethereum",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.17.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-19T21:07:37.943Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3"
        },
        {
          "name": "https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0"
        }
      ],
      "source": {
        "advisory": "GHSA-689v-6xwf-5jf3",
        "discovery": "UNKNOWN"
      },
      "title": "Go Ethereum affected by DoS via malicious p2p message"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-26313",
    "datePublished": "2026-02-19T21:07:37.943Z",
    "dateReserved": "2026-02-13T16:27:51.807Z",
    "dateUpdated": "2026-02-20T19:53:54.846Z",
    "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.

Detection rules are retrieved from Rulezet.

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