Vulnerability-Lookup

CVE-2026-18544 (GCVE-0-2026-18544)

Vulnerability from cvelistv5 – Published: 2026-08-19 20:29 – Updated: 2026-08-21 16:13

Title

Portieris is vulnerable to Image Policy Bypass via Unvalidated ownerReference

Summary

IBM Portieris 0.5.0 through 0.14.2 could allow a remote authenticated attacker to bypass image policy enforcement due to improper authorization of pod owner references.

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 16:09 UTC

CWE

CWE-862 - Missing Authorization

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7284125	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	Portieris	Affected: 0.5.0 , ≤ 0.14.2 (semver) cpe:2.3:a:ibm:portieris:0.5.0:::::::* cpe:2.3:a:ibm:portieris:0.14.2:::::::*

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-18544

Vulnerability from fkie_nvd - Published: 2026-08-19 21:16 - Updated: 2026-09-02 18:59

Severity

8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Summary

IBM Portieris 0.5.0 through 0.14.2 could allow a remote authenticated attacker to bypass image policy enforcement due to improper authorization of pod owner references.

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7284125	Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	ibm	portieris	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:portieris:0.5.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:portieris:0.14.2:*:*:*:*:*:*:*"
          ],
          "product": "Portieris",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "0.14.2",
              "status": "affected",
              "version": "0.5.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ibm:portieris:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CC764331-19FF-4286-A3F9-5F5EFAE80A36",
              "versionEndExcluding": "0.14.3",
              "versionStartIncluding": "0.5.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
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    }
  ],
  "id": "CVE-2026-18544",
  "lastModified": "2026-09-02T18:59:59.400",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
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          "version": "3.1"
        },
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        "impactScore": 5.2,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ],
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            }
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}

GHSA-Q4GW-3XWF-FPCW

Vulnerability from github – Published: 2026-08-19 21:30 – Updated: 2026-08-19 21:30

Details

IBM Portieris 0.5.0 through 0.14.2 could allow a remote authenticated attacker to bypass image policy enforcement due to improper authorization of pod owner references.

Severity

8.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18544"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T21:16:54Z",
    "severity": "HIGH"
  },
  "details": "IBM Portieris 0.5.0 through 0.14.2 could allow a remote authenticated attacker to bypass image policy enforcement due to improper authorization of pod owner references.",
  "id": "GHSA-q4gw-3xwf-fpcw",
  "modified": "2026-08-19T21:30:37Z",
  "published": "2026-08-19T21:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18544"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7284125"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Action not permitted

CVE-2026-18544 (GCVE-0-2026-18544)

FKIE_CVE-2026-18544

GHSA-Q4GW-3XWF-FPCW

Tags

Sightings

Nomenclature