CVE-2026-119660 (GCVE-0-2026-119660)

Vulnerability from cvelistv5 – Published: 2026-10-30 14:16 – Updated: 2026-10-30 14:16
VLAI
Title
MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key
Summary
MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7162 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
yincongcyincong MuseBot Affected: 0 , < 2.0.0 (semver)
guessed Create a notification for this product.
Date Public
2026-10-22 00:00
Credits
hieuPenguinnn yincongcyincong
Show details on NVD website
To clipboard 

{
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          "product": "MuseBot",
          "repo": "https://github.com/yincongcyincong/MuseBot",
          "vendor": "yincongcyincong",
          "versions": [
            {
              "lessThan": "2.0.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
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      "credits": [
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          "type": "finder",
          "value": "hieuPenguinnn"
        },
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          "type": "remediation developer",
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      "descriptions": [
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          "value": "MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key \u0027muse_bot_session_key\u0027. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots."
        }
      ],
      "metrics": [
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
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            "userInteraction": "NONE",
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          "tags": [
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          "url": "https://github.com/yincongcyincong/MuseBot/issues/61"
        },
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          "tags": [
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          "url": "https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae"
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        },
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          "url": "https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88"
        },
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          "url": "https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass"
        },
        {
          "tags": [
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          "url": "https://github.com/yincongcyincong/MuseBot"
        },
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          "name": "VulnCheck Advisory: MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key",
          "tags": [
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          "url": "https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key"
        }
      ],
      "title": "MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-119660",
    "datePublished": "2026-10-30T14:16:21.246Z",
    "dateReserved": "2026-10-30T13:43:49.076Z",
    "dateUpdated": "2026-10-30T14:16:21.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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                "repo": "https://github.com/yincongcyincong/MuseBot",
                "vendor": "yincongcyincong",
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                    "status": "affected",
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                    "versionType": "semver"
                  }
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        "cveTags": [],
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          }
        ],
        "id": "CVE-2026-119660",
        "lastModified": "2026-10-30T19:23:25.493",
        "metrics": {
          "cvssMetricV31": [
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                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "valueDensity": "NOT_DEFINED",
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}



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