Vulnerability-Lookup

oesa-2026-3417

Vulnerability from osv_openeuler

Published

2026-08-20 09:55

Modified

2026-08-20 09:55

Summary

policycoreutils security update

Details

It contains the selinux policy core utilities

Security Fix(es):

A Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context

This issue affects policycoreutils through 3.10.(CVE-2026-59677)

Severity

6.8 (Medium)


                    
                      CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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-2026-59677	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "policycoreutils-3.5-5.oe2403sp4.aarch64.rpm",
          "policycoreutils-debuginfo-3.5-5.oe2403sp4.aarch64.rpm",
          "policycoreutils-debugsource-3.5-5.oe2403sp4.aarch64.rpm",
          "policycoreutils-devel-3.5-5.oe2403sp4.aarch64.rpm",
          "policycoreutils-help-3.5-5.oe2403sp4.aarch64.rpm"
        ],
        "noarch": [
          "policycoreutils-dbus-3.5-5.oe2403sp4.noarch.rpm",
          "policycoreutils-python-utils-3.5-5.oe2403sp4.noarch.rpm",
          "python3-policycoreutils-3.5-5.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "policycoreutils-3.5-5.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "policycoreutils-3.5-5.oe2403sp4.x86_64.rpm",
          "policycoreutils-debuginfo-3.5-5.oe2403sp4.x86_64.rpm",
          "policycoreutils-debugsource-3.5-5.oe2403sp4.x86_64.rpm",
          "policycoreutils-devel-3.5-5.oe2403sp4.x86_64.rpm",
          "policycoreutils-help-3.5-5.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "policycoreutils",
        "purl": "pkg:rpm/openEuler/policycoreutils\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5-5.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "It contains the selinux policy core utilities\r\n\r\nSecurity Fix(es):\n\nA Missing Authorization vulnerability in selinux policycoreutils seunshares allows a\u00a0user that is running in unconfined context to kill e.g. root-owned processes running also in\nunconfined context\n\n\n\n\n\n\nThis issue affects policycoreutils through 3.10.(CVE-2026-59677)",
  "id": "OESA-2026-3417",
  "modified": "2026-08-20T09:55:06Z",
  "published": "2026-08-20T09:55:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3417"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59677"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "policycoreutils security update",
  "upstream": [
    "CVE-2026-59677"
  ]
}

CVE-2026-59677 (GCVE-0-2026-59677)

Vulnerability from cvelistv5 – Published: 2026-07-23 06:43 – Updated: 2026-07-23 14:02

Title

Process Kill Attack Vector in killall() in seunshare

Summary

A Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context This issue affects policycoreutils through 3.10.

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 14:02 UTC

CWE

CWE-862 - Missing Authorization

Assigner

suse mitre root

References

2 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1268256
https://security.opensuse.org/2026/07/15/selinux-…

Impacted products

1 product

Vendor	Product	Version
SELinuxProject	selinux	Affected: 0 , ≤ 3.10 (semver)

Date Public

2026-07-17 06:36

Credits

Matthias Gerstner of SUSE

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-59677",
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                  },
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-23T14:02:07.433384Z",
                "version": "2.0.3"
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      "source": {
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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.