Vulnerability-Lookup

GHSA-2FPX-XRC2-7QF3

Vulnerability from github – Published: 2026-04-05 06:32 – Updated: 2026-04-05 06:32

Details

A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

7.3 (High)


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

6.9 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-5536"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-05T04:16:09Z",
    "severity": "MODERATE"
  },
  "details": "A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-2fpx-xrc2-7qf3",
  "modified": "2026-04-05T06:32:02Z",
  "published": "2026-04-05T06:32:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5536"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AnalogyC0de/public_exp/issues/26"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/782201"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/355289"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/355289/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "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/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"
    }
  ]
}

CVE-2026-5536 (GCVE-0-2026-5536)

Vulnerability from cvelistv5 – Published: 2026-04-05 02:45 – Updated: 2026-04-06 14:51

Title

FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization

Summary

Severity ?

6.9 (Medium)


                        
                          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

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

7.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/vuln/355289	vdb-entrytechnical-description
	https://vuldb.com/vuln/355289/cti	signaturepermissions-required
	https://vuldb.com/submit/782201	third-party-advisory
	https://github.com/AnalogyC0de/public_exp/issues/26	issue-tracking

Impacted products

	Vendor	Product	Version
	FedML-AI	FedML	Affected: 0.8.0 Affected: 0.8.1 Affected: 0.8.2 Affected: 0.8.3 Affected: 0.8.4 Affected: 0.8.5 Affected: 0.8.6 Affected: 0.8.7 Affected: 0.8.8 Affected: 0.8.9

Credits

Ana10gy (VulDB User) VulDB CNA Team

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-5536",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-06T14:02:58.373354Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-06T14:51:18.212Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "gRPC server"
          ],
          "product": "FedML",
          "vendor": "FedML-AI",
          "versions": [
            {
              "status": "affected",
              "version": "0.8.0"
            },
            {
              "status": "affected",
              "version": "0.8.1"
            },
            {
              "status": "affected",
              "version": "0.8.2"
            },
            {
              "status": "affected",
              "version": "0.8.3"
            },
            {
              "status": "affected",
              "version": "0.8.4"
            },
            {
              "status": "affected",
              "version": "0.8.5"
            },
            {
              "status": "affected",
              "version": "0.8.6"
            },
            {
              "status": "affected",
              "version": "0.8.7"
            },
            {
              "status": "affected",
              "version": "0.8.8"
            },
            {
              "status": "affected",
              "version": "0.8.9"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ana10gy (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.5,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "Deserialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-05T02:45:12.841Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-355289 | FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/355289"
        },
        {
          "name": "VDB-355289 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/355289/cti"
        },
        {
          "name": "Submit #782201 | FedML-AI FedML \u003c= 0.8.9 Remote Code Execution",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/782201"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/AnalogyC0de/public_exp/issues/26"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-04T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-04-04T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-04-04T08:46:00.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-5536",
    "datePublished": "2026-04-05T02:45:12.841Z",
    "dateReserved": "2026-04-04T06:40:50.140Z",
    "dateUpdated": "2026-04-06T14:51:18.212Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-2FPX-XRC2-7QF3

CVE-2026-5536 (GCVE-0-2026-5536)

Tags

Sightings

Nomenclature