GHSA-GC4H-XC67-2W55

Vulnerability from github – Published: 2026-03-27 15:30 – Updated: 2026-03-27 15:30
VLAI
Details

Vulnerable versions of Coverity Connect lack an error handler in the authentication logic for command line tooling that makes it vulnerable to an authentication bypass. A malicious actor with access to the /token API endpoint that either knows or guesses a valid username, can use this in a specially crafted HTTP request to bypass authentication. Successful exploitation allows the malicious actor to assume all roles and privileges granted to the valid user’s Coverity Connect account.

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
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{
  "affected": [],
  "aliases": [
    "CVE-2026-1496"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-27T15:16:48Z",
    "severity": "CRITICAL"
  },
  "details": "Vulnerable versions of Coverity Connect lack an error handler in the authentication logic for command line tooling that makes it vulnerable to an authentication bypass.\u00a0A malicious actor with access to the\u00a0/token\u00a0API endpoint that either knows or guesses a valid username, can use this in a specially crafted HTTP request to bypass authentication.\u00a0Successful exploitation allows the malicious actor to assume all roles and privileges granted to the valid user\u2019s Coverity Connect account.",
  "id": "GHSA-gc4h-xc67-2w55",
  "modified": "2026-03-27T15:30:26Z",
  "published": "2026-03-27T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1496"
    },
    {
      "type": "WEB",
      "url": "https://community.blackduck.com/s/article/Black-Duck-Security-Advisory-CVE-2026-1496"
    },
    {
      "type": "WEB",
      "url": "https://community.blackduck.com/s/article/Instructions-on-how-to-block-token-endpoint-for-Coverity-Connect"
    },
    {
      "type": "WEB",
      "url": "https://community.blackduck.com/s/article/WAF-IDS-IPS-Mitigation-Guidance"
    },
    {
      "type": "WEB",
      "url": "https://github.com/blackduck-inc/Coverity-Usage-Log-Analyzer"
    }
  ],
  "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/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"
    }
  ]
}



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