Vulnerability-Lookup

OESA-2026-3736 (CVE-2026-82474)

Vulnerability from osv_openeuler – Published: 2026-09-14 16:33 – Updated: 2026-09-14 16:33 – Source website

Summary

sudo security update

Details

Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity. The basic philosophy is to give as few privileges as possible but still allow people to get their work done.

Security Fix(es):

Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.(CVE-2026-82474)

Severity

8.5 (High)


                    
                      CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-82474	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "sudo-1.9.15p5-8.oe2403sp4.aarch64.rpm",
          "sudo-debuginfo-1.9.15p5-8.oe2403sp4.aarch64.rpm",
          "sudo-debugsource-1.9.15p5-8.oe2403sp4.aarch64.rpm",
          "sudo-devel-1.9.15p5-8.oe2403sp4.aarch64.rpm"
        ],
        "noarch": [
          "sudo-help-1.9.15p5-8.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "sudo-1.9.15p5-8.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "sudo-1.9.15p5-8.oe2403sp4.x86_64.rpm",
          "sudo-debuginfo-1.9.15p5-8.oe2403sp4.x86_64.rpm",
          "sudo-debugsource-1.9.15p5-8.oe2403sp4.x86_64.rpm",
          "sudo-devel-1.9.15p5-8.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "sudo",
        "purl": "pkg:rpm/openEuler/sudo\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.15p5-8.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity.  The basic philosophy is to give as few privileges as possible but still allow people to get their work done.\r\n\r\nSecurity Fix(es):\n\nSudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.(CVE-2026-82474)",
  "id": "OESA-2026-3736",
  "modified": "2026-09-14T16:33:51Z",
  "published": "2026-09-14T16:33:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3736"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82474"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "sudo security update",
  "upstream": [
    "CVE-2026-82474"
  ]
}

CVE-2026-82474 (GCVE-0-2026-82474)

Vulnerability from cvelistv5 – Published: 2026-08-29 16:35 – Updated: 2026-09-02 17:57

Title

Sudo through 1.9.17p2 Intercept Policy Bypass via execveat

Summary

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 17:57 UTC

CWE

CWE-693 - Protection Mechanism Failure

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/sudo-project/sudo/commit/71fbe…	patch
https://github.com/sudo-project/sudo/blob/v1.9.17…	technical-description
https://github.com/sudo-project/sudo	product
https://www.vulncheck.com/advisories/sudo-through…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
sudo-project	sudo	Affected: 0 , ≤ 1.9.17p2 (custom) cpe:2.3:a:sudo_project:sudo::::::::

Date Public

2026-03-20 00:00

Credits

XlabAI Team of Tencent Xuanwu Lab Guannan Wang Zhanpeng Liu Guancheng Li Nofil Qasim Quentin Chalabi

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-82474",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T17:57:08.126153Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-02T17:57:15.670Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "sudo",
          "vendor": "sudo-project",
          "versions": [
            {
              "lessThanOrEqual": "1.9.17p2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "1.9.17p2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "XlabAI Team of Tencent Xuanwu Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Guannan Wang"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Zhanpeng Liu"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Guancheng Li"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Nofil Qasim"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Quentin Chalabi"
        }
      ],
      "datePublic": "2026-03-20T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T16:35:33.836Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/sudo-project/sudo/commit/71fbe42dcd5a1c8f799540583a2dfb2ae6221edf"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/sudo-project/sudo"
        },
        {
          "name": "VulnCheck Advisory: Sudo through 1.9.17p2 Intercept Policy Bypass via execveat",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveat"
        }
      ],
      "title": "Sudo through 1.9.17p2 Intercept Policy Bypass via execveat",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82474",
    "datePublished": "2026-08-29T16:35:33.836Z",
    "dateReserved": "2026-08-29T14:11:14.262Z",
    "dateUpdated": "2026-09-02T17:57:15.670Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.