Vulnerability-Lookup

RLSA-2026:68692 (CVE-2026-82474)

Vulnerability from osv_rocky – Published: 2026-09-19 12:09 – Updated: 2026-09-19 18:13 – Source website

Summary

Important: sudo security, bug fix, and enhancement update

Details

The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.

Security Fix(es):

sudo: Sudo: Policy bypass allows unauthorized program execution via execveat (CVE-2026-82474)

Bug Fix(es) and Enhancement(s):

Use canonicalized path if user path contains ".." (JIRA:Rocky Linux-212546)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity

7.8 (High)


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

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:68692	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2525889	REPORT
	https://access.redhat.com/errata/RHSA-2026:68692	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "sudo",
        "purl": "pkg:rpm/rocky-linux/sudo?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:1.9.17-10.p2.el10_2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:68692"
  },
  "details": "The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.\n\nSecurity Fix(es):\n\n* sudo: Sudo: Policy bypass allows unauthorized program execution via execveat (CVE-2026-82474)\n\nBug Fix(es) and Enhancement(s):\n\n* Use canonicalized path if user path contains \"..\"  (JIRA:Rocky Linux-212546)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:68692",
  "modified": "2026-09-19T18:13:24.641675Z",
  "published": "2026-09-19T12:09:22.893412Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:68692"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525889"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:68692"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: sudo security, bug fix, and enhancement 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

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.

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.