Vulnerability-Lookup

GHSA-G5FC-F834-RCR2

Vulnerability from github – Published: 2026-04-03 03:31 – Updated: 2026-04-03 03:31

Details

In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.

Severity ?

7.4 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-35535"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-271"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T03:16:18Z",
    "severity": "HIGH"
  },
  "details": "In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.",
  "id": "GHSA-g5fc-f834-rcr2",
  "modified": "2026-04-03T03:31:02Z",
  "published": "2026-04-03T03:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35535"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/1130593"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042"
    },
    {
      "type": "WEB",
      "url": "https://www.qualys.com/2026/03/10/crack-armor.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-35535 (GCVE-0-2026-35535)

Vulnerability from cvelistv5 – Published: 2026-04-03 02:21 – Updated: 2026-04-04 03:55

Summary

Severity ?

7.4 (High)


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

CWE

CWE-271 - Privilege Dropping / Lowering Errors

Assigner

mitre

References

URL

Tags

	https://github.com/sudo-project/sudo/commit/3e474…
	https://www.qualys.com/2026/03/10/crack-armor.txt
	https://bugs.launchpad.net/ubuntu/+source/sudo/+b…
	https://bugs.debian.org/1130593

Impacted products

	Vendor	Product	Version
	Sudo project	Sudo	Affected: 0 , < 3e474c2f201484be83d994ae10a4e20e8c81bb69 (git)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35535",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-03T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-04T03:55:19.379Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Sudo",
          "vendor": "Sudo project",
          "versions": [
            {
              "lessThan": "3e474c2f201484be83d994ae10a4e20e8c81bb69",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-271",
              "description": "CWE-271 Privilege Dropping / Lowering Errors",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-03T02:21:33.584Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69"
        },
        {
          "url": "https://www.qualys.com/2026/03/10/crack-armor.txt"
        },
        {
          "url": "https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042"
        },
        {
          "url": "https://bugs.debian.org/1130593"
        }
      ],
      "x_generator": {
        "engine": "CVE-Request-form 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-35535",
    "datePublished": "2026-04-03T02:21:33.584Z",
    "dateReserved": "2026-04-03T02:21:32.829Z",
    "dateUpdated": "2026-04-04T03:55:19.379Z",
    "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-G5FC-F834-RCR2

CVE-2026-35535 (GCVE-0-2026-35535)

Tags

Sightings

Nomenclature