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FKIE_CVE-2026-48722

Vulnerability from fkie_nvd - Published: 2026-09-15 15:17 - Updated: 2026-09-15 15:17
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Nextflow is a DSL for data-driven computational pipelines. From 25.09.2-edge until 25.10.6 and 26.04.3, nextflow auth login writes Seqera Platform OIDC bearer tokens to ${NXF_HOME:-~/.nextflow}/seqera-auth.config through AuthCommandImpl.writeConfig in plugins/nf-tower/src/main/io/seqera/tower/plugin/auth/AuthCommandImpl.groovy without setting restrictive file permissions, allowing the default umask 022 to create the file with mode 0644. On a multi-user POSIX host, a local user who can traverse the victim's home directory can read seqera-auth.config and impersonate the victim against Seqera Platform within the token's scope. Single-user systems and headless CI runners that do not use the interactive login flow are not affected. This issue is fixed in 25.10.6 and 26.04.3.
References
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/commit/41a5f24afec8a6e9769a24cae5e08b5462fbfdc1
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/commit/a2813c610a3e7f13d7a0a0b1b543b7ad47586eaa
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/pull/7182
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/releases/tag/v25.10.6
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/releases/tag/v26.04.3
security-advisories@github.comhttps://github.com/nextflow-io/nextflow/security/advisories/GHSA-92qf-fcph-v5wr
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "nextflow",
          "vendor": "nextflow-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 25.09.2-edge, \u003c 25.10.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 25.11.0-edge, \u003c 26.04.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextflow is a DSL for data-driven computational pipelines. From 25.09.2-edge until 25.10.6 and 26.04.3, nextflow auth login writes Seqera Platform OIDC bearer tokens to ${NXF_HOME:-~/.nextflow}/seqera-auth.config through AuthCommandImpl.writeConfig in plugins/nf-tower/src/main/io/seqera/tower/plugin/auth/AuthCommandImpl.groovy without setting restrictive file permissions, allowing the default umask 022 to create the file with mode 0644. On a multi-user POSIX host, a local user who can traverse the victim\u0027s home directory can read seqera-auth.config and impersonate the victim against Seqera Platform within the token\u0027s scope. Single-user systems and headless CI runners that do not use the interactive login flow are not affected. This issue is fixed in 25.10.6 and 26.04.3."
    }
  ],
  "id": "CVE-2026-48722",
  "lastModified": "2026-09-15T15:17:16.020",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-15T15:17:16.020",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/commit/41a5f24afec8a6e9769a24cae5e08b5462fbfdc1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/commit/a2813c610a3e7f13d7a0a0b1b543b7ad47586eaa"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/pull/7182"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/releases/tag/v25.10.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/releases/tag/v26.04.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextflow-io/nextflow/security/advisories/GHSA-92qf-fcph-v5wr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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