Vulnerability-Lookup

CVE-2026-48063 (GCVE-0-2026-48063)

Vulnerability from cvelistv5 – Published: 2026-08-03 20:55 – Updated: 2026-08-04 14:03

Title

Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload

Summary

Baileys is a cocket-based TS/JavaScript API for WhatsApp Web. In versions prior to both 6.7.22 and 7.0.0-rc12, any Baileys session can be sent a malicious payload via the placeholderResendMessage and trigger a fake messages.upsert event with a fake message key and payload. This allows anyone to spoof messages. The same exploit also allows an attacker to corrupt the app state sync system by sending fake key shares, and also allows for history sync spoofing which also serves the same problem, injecting fake previous context or "on-demand" sync. This issue has been fixed in versions 6.7.22 and 7.0.0-rc12.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-04 14:03 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing
CWE-345 - Insufficient Verification of Data Authenticity
CWE-346 - Origin Validation Error

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/WhiskeySockets/Baileys/securit…	x_refsource_CONFIRM
https://github.com/WhiskeySockets/Baileys/commit/…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version	CPE status
WhiskeySockets	Baileys	Affected: < 6.7.22 Affected: >= 7.0.0-rc.1, < 7.0.0-rc12	guessed
WhiskeySockets	@whiskeysockets/baileys	Affected: < 6.7.22 Affected: >= 7.0.0-rc.1, < 7.0.0-rc12	guessed

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-48063",
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FKIE_CVE-2026-48063

Vulnerability from fkie_nvd - Published: 2026-08-03 21:16 - Updated: 2026-08-04 15:16

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/WhiskeySockets/Baileys/commit/3beb08eecfcb4e65722e674034bd84fb11a9de35
	security-advisories@github.com	https://github.com/WhiskeySockets/Baileys/security/advisories/GHSA-qvv5-jq5g-4cgg

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Baileys",
          "vendor": "WhiskeySockets",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.7.22"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0-rc.1, \u003c 7.0.0-rc12"
            }
          ]
        },
        {
          "product": "@whiskeysockets/baileys",
          "vendor": "WhiskeySockets",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.7.22"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0-rc.1, \u003c 7.0.0-rc12"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
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    {
      "lang": "en",
      "value": "Baileys is a cocket-based TS/JavaScript API for WhatsApp Web. In versions prior to both 6.7.22 and 7.0.0-rc12, any Baileys session  can be sent a malicious payload via the placeholderResendMessage and trigger a fake messages.upsert event with a fake message key and payload. This allows anyone to spoof messages. The same exploit also allows an attacker to corrupt the app state sync system by sending fake key shares, and also allows for history sync spoofing which also serves the same problem, injecting fake previous context or \"on-demand\" sync. This issue has been fixed in versions 6.7.22 and 7.0.0-rc12."
    }
  ],
  "id": "CVE-2026-48063",
  "lastModified": "2026-08-04T15:16:35.153",
  "metrics": {
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      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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        },
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}

GHSA-QVV5-JQ5G-4CGG

Vulnerability from github – Published: 2026-06-10 19:33 – Updated: 2026-06-10 19:33

Summary

Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload

Details

Impact

Any baileys session under the latest version (< 7.0.0-rc12, and < 6.7.22) can be sent a malicious payload via the placeholderResendMessage and trigger a fake messages.upsert event with a fake message key and payload. This allows anyone to spoof messages. The same exploit also allows an attacker to corrupt the app state sync system by sending fake key shares, and also allows for history sync spoofing which also serves the same problem, injecting fake previous context or "on-demand" sync.

Patches

https://github.com/WhiskeySockets/Baileys/commit/3beb08eecfcb4e65722e674034bd84fb11a9de35 This commit has patched the issue, and a version tag has been released under 7.0.0 (6.7.22) for those still on Baileys v6. A new Baileys version, v7.0.0-rc12, has been released to remediate this.

Workarounds

There are no real workarounds other than dropping messages.upsertevents that contain a requestId field, turning off automatic history sync (shouldSyncHistoryMessage: () => false) in socket config. There are no workarounds for the app state sync jamming.

Severity

9.3 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "baileys"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.7.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@whiskeysockets/baileys"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.7.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "baileys"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0-rc.1"
            },
            {
              "fixed": "7.0.0-rc12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@whiskeysockets/baileys"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0-rc.1"
            },
            {
              "fixed": "7.0.0-rc12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48063"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-290",
      "CWE-345",
      "CWE-346"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-10T19:33:20Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Impact\nAny baileys session under the latest version (\u003c 7.0.0-rc12, and \u003c 6.7.22) can be sent a malicious payload via the placeholderResendMessage and trigger a fake `messages.upsert` event with a **fake message key and payload**. This allows anyone to spoof messages. The same exploit also allows an attacker to corrupt the app state sync system by sending fake key shares, and also allows for history sync spoofing which also serves the same problem, injecting fake previous context or \"on-demand\" sync.\n\n### Patches\nhttps://github.com/WhiskeySockets/Baileys/commit/3beb08eecfcb4e65722e674034bd84fb11a9de35 This commit has patched the issue, and a version tag has been released under 7.0.0 (6.7.22) for those still on Baileys v6. A new Baileys version, v7.0.0-rc12, has been released to remediate this.\n\n\n### Workarounds\nThere are no real workarounds other than dropping `messages.upsert `events that contain a `requestId` field, turning off automatic history sync (`shouldSyncHistoryMessage: () =\u003e false`) in socket config. There are no workarounds for the app state sync jamming.",
  "id": "GHSA-qvv5-jq5g-4cgg",
  "modified": "2026-06-10T19:33:20Z",
  "published": "2026-06-10T19:33:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/WhiskeySockets/Baileys/security/advisories/GHSA-qvv5-jq5g-4cgg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WhiskeySockets/Baileys/commit/3beb08eecfcb4e65722e674034bd84fb11a9de35"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/WhiskeySockets/Baileys"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload"
}

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.

Action not permitted

CVE-2026-48063 (GCVE-0-2026-48063)

FKIE_CVE-2026-48063

GHSA-QVV5-JQ5G-4CGG

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature