Vulnerability-Lookup

GHSA-MMF7-GVJR-4MJF

Vulnerability from github – Published: 2026-09-16 18:32 – Updated: 2026-09-16 18:32

Details

A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended.

Severity

7.3 (High)


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

5.5 (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:P

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92399"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T17:18:19Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended.",
  "id": "GHSA-mmf7-gvjr-4mjf",
  "modified": "2026-09-16T18:32:05Z",
  "published": "2026-09-16T18:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92399"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/issues/3860"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/commit/37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/releases/tag/abi-16.26"
    },
    {
      "type": "WEB",
      "url": "https://github.com/user-attachments/files/31208030/poc_rmt_ws_malicious_frame.py"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-92399"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/940250"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405551"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405551/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:P/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-2026-92399 (GCVE-0-2026-92399)

Vulnerability from cvelistv5 – Published: 2026-09-16 16:15 – Updated: 2026-09-16 16:15 X_Open Source

Title

GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow

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:P

7.3 (High)


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

7.3 (High)


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

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB mitre root

References

9 references

URL	Tags
https://vuldb.com/vuln/405551	vdb-entrytechnical-description
https://vuldb.com/vuln/405551/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-92399	third-party-advisory
https://vuldb.com/submit/940250	third-party-advisory
https://github.com/gpac/gpac/issues/3860	issue-tracking
https://github.com/user-attachments/files/3120803…	exploit
https://github.com/gpac/gpac/commit/37bccbb30cf53…	patch
https://github.com/gpac/gpac/releases/tag/abi-16.26	patch
https://github.com/gpac/gpac/	product

Impacted products

1 product

Vendor	Product	Version
n/a	GPAC	Affected: 26.07.0 Unaffected: abi-16.26 cpe:2.3:a:gpac:gpac::::::::

Credits

JerryGW (VulDB User)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "WebSocket Handler"
          ],
          "product": "GPAC",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "26.07.0"
            },
            {
              "status": "unaffected",
              "version": "abi-16.26"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "JerryGW (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended."
        }
      ],
      "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:P",
            "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:P/RL:O/RC:C",
            "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:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.5,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T16:15:08.672Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-405551 | GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/405551"
        },
        {
          "name": "VDB-405551 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/405551/cti"
        },
        {
          "name": "CVE-2026-92399 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-92399"
        },
        {
          "name": "Submit #940250 | GPAC v26.07.0 (commit 2d7da22e) / master HEAD 6fed75df \u2014 fixed in 37bccbb Memory Corruption (CWE-122: Heap-based Buffer Overflow)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/940250"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/gpac/gpac/issues/3860"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/user-attachments/files/31208030/poc_rmt_ws_malicious_frame.py"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/gpac/gpac/commit/37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/gpac/gpac/releases/tag/abi-16.26"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/gpac/gpac/"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-16T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-09-16T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-16T10:52:27.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-92399",
    "datePublished": "2026-09-16T16:15:08.672Z",
    "dateReserved": "2026-09-16T08:47:23.171Z",
    "dateUpdated": "2026-09-16T16:15:08.672Z",
    "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.

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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GHSA-MMF7-GVJR-4MJF

CVE-2026-92399 (GCVE-0-2026-92399)

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Sightings

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