osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow

{
  "id": "7f01e32fcb43976bdc1e712b43d2e16369b09e518ad8feaede5bd5b3cee73206",
  "url": "https://osv.dev/vulnerability/CVE-2026-7735",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow",
    "summary": "A vulnerability was found in osrg GoBGP up to 4.3.0. Affected is the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. Performing a manipulation results in buffer overflow. It is possible to initiate the attack remotely. Upgrading to version 4.4.0 is able to address this issue. The patch is named 51ad1ada06cb41ce47b7066799981816f50b7ced. The affected component should be upgraded.",
    "evidence": "osv:CVE-2026-7735",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-7735",
      "aliases": [
        "CVE-2026-7735"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/osrg/gobgp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c9c1c120495527d231cfebce28b29a8924717d6c"
                },
                {
                  "fixed": "51ad1ada06cb41ce47b7066799981816f50b7ced"
                },
                {
                  "fixed": "12b4ebaef14f61e1c7c7403c770b67826f0b8cf4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "last_affected": "4.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.1"
                      },
                      {
                        "last_affected": "4.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.2"
                      },
                      {
                        "last_affected": "4.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.3.0"
                      },
                      {
                        "last_affected": "4.3.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "51ad1ada06cb41ce47b7066799981816f50b7ced"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "12b4ebaef14f61e1c7c7403c770b67826f0b8cf4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.4.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0",
            "4.1",
            "4.2",
            "4.3.0",
            "v4.3.0",
            "v4.2.0",
            "v4.1.0",
            "v4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7735.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.284072593Z",
      "provider": "osv",
      "references": [
        "https://github.com/osrg/gobgp/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7735.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-7735",
        "https://vuldb.com/submit/807600",
        "https://vuldb.com/vuln/360910",
        "https://vuldb.com/vuln/360910/cti",
        "https://github.com/osrg/gobgp/commit/51ad1ada06cb41ce47b7066799981816f50b7ced",
        "https://github.com/osrg/gobgp/releases/tag/v4.4.0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119",
          "CWE-120"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7735.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-7735",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505741,
  "published_at": "2026-05-04T05:15:11.921+00:00"
}