Vulnerability-Lookup

GHSA-3G85-XPC2-P2HQ

Vulnerability from github – Published: 2026-02-16 12:30 – Updated: 2026-02-16 12:30

Details

The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes.

Severity ?

10.0 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-2577"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-16T10:16:08Z",
    "severity": "CRITICAL"
  },
  "details": "The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes.",
  "id": "GHSA-3g85-xpc2-p2hq",
  "modified": "2026-02-16T12:30:25Z",
  "published": "2026-02-16T12:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2577"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/research/tra-2026-09"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-2577 (GCVE-0-2026-2577)

Vulnerability from cvelistv5 – Published: 2026-02-16 09:51 – Updated: 2026-02-17 16:43

Title

Nanobot Unauthenticated WhatsApp Session Hijack via WebSocket Bridge

Summary

Severity ?

10 (Critical)


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

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

tenable

References

URL

Tags

	https://www.tenable.com/security/research/tra-2026-09
	https://github.com/HKUDS/nanobot/releases/tag/v0.…

Impacted products

	Vendor	Product	Version
	HKUDS	nanobot	Affected: 0 , < 0.1.3.Post7 (custom)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-2577",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-17T16:43:23.441404Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-17T16:43:29.855Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "nanobot",
          "vendor": "HKUDS",
          "versions": [
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              "lessThan": "0.1.3.Post7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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      ],
      "datePublic": "2026-02-16T09:47:00.000Z",
      "descriptions": [
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          "lang": "en",
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              "base64": false,
              "type": "text/html",
              "value": "The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes."
            }
          ],
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        }
      ],
      "impacts": [
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            {
              "lang": "en",
              "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
            }
          ]
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      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
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          "scenarios": [
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              "description": "CWE-306 Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-02-16T09:51:11.375Z",
        "orgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
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        {
          "url": "https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Nanobot Unauthenticated WhatsApp Session Hijack via WebSocket Bridge",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
    "assignerShortName": "tenable",
    "cveId": "CVE-2026-2577",
    "datePublished": "2026-02-16T09:51:11.375Z",
    "dateReserved": "2026-02-16T09:39:50.906Z",
    "dateUpdated": "2026-02-17T16:43:29.855Z",
    "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-3G85-XPC2-P2HQ

CVE-2026-2577 (GCVE-0-2026-2577)

Tags

Sightings

Nomenclature