Vulnerability-Lookup

GHSA-PF97-P8FF-FJ35

Vulnerability from github – Published: 2026-01-21 09:31 – Updated: 2026-01-21 09:31

Details

telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.

Severity ?

9.8 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-24061"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-88"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-21T07:16:01Z",
    "severity": "CRITICAL"
  },
  "details": "telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a \"-f root\" value for the USER environment variable.",
  "id": "GHSA-pf97-p8ff-fj35",
  "modified": "2026-01-21T09:31:30Z",
  "published": "2026-01-21T09:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24061"
    },
    {
      "type": "WEB",
      "url": "https://www.gnu.org/software/inetutils"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/01/20/2"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/01/20/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-24061 (GCVE-0-2026-24061)

Vulnerability from cvelistv5 – Published: 2026-01-21 06:42 – Updated: 2026-01-21 07:03

Summary

telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.

Severity ?

9.8 (Critical)


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

CWE

CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Assigner

mitre

References

URL

Tags

	https://www.openwall.com/lists/oss-security/2026/…
	https://www.openwall.com/lists/oss-security/2026/…
	https://www.gnu.org/software/inetutils/

Impacted products

	Vendor	Product	Version
	GNU	Inetutils	Affected: 1.9.3 , ≤ 2.7 (custom)

Show details on NVD website

JSON

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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Inetutils",
          "vendor": "GNU",
          "versions": [
            {
              "lessThanOrEqual": "2.7",
              "status": "affected",
              "version": "1.9.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "2.7",
                  "versionStartIncluding": "1.9.3",
                  "vulnerable": true
                }
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        }
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      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          },
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          "scenarios": [
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88 Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-21T07:03:39.840Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.openwall.com/lists/oss-security/2026/01/20/2"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2026/01/20/8"
        },
        {
          "url": "https://www.gnu.org/software/inetutils/"
        }
      ],
      "x_generator": {
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-24061",
    "datePublished": "2026-01-21T06:42:17.134Z",
    "dateReserved": "2026-01-21T06:42:16.865Z",
    "dateUpdated": "2026-01-21T07:03:39.840Z",
    "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-PF97-P8FF-FJ35

CVE-2026-24061 (GCVE-0-2026-24061)

Tags

Sightings

Nomenclature