Vulnerability-Lookup

GHSA-Q4PH-46QC-4W6X

Vulnerability from github – Published: 2026-08-20 12:31 – Updated: 2026-09-28 12:31

Details

A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.

Severity

9.1 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13097"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-706"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-20T11:16:20Z",
    "severity": "CRITICAL"
  },
  "details": "A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.",
  "id": "GHSA-q4ph-46qc-4w6x",
  "modified": "2026-09-28T12:31:03Z",
  "published": "2026-08-20T12:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13097"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:70564"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:72279"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-13097"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515974"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-13097 (GCVE-0-2026-13097)

Vulnerability from cvelistv5 – Published: 2026-08-20 10:37 – Updated: 2026-09-28 09:29

Title

Ipa: privilege escalation via krbcanonicalname manipulation due to realm-unaware uniqueness enforcement in freeipa ldap datastore

Summary

Severity

8.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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 18:11 UTC

CWE

CWE-706 - Use of Incorrectly-Resolved Name or Reference

Assigner

redhat redhat root Scorecard

References

4 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:70564	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72279	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-13097	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2515974	issue-trackingx_refsource_REDHAT

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:4.13.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:4.13.4-1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8

Date Public

2026-08-20 10:19

Credits

Red Hat would like to thank Vladislav Plyatsok (rd01f) for reporting this issue.

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JSON

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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-13097",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T18:11:59.402027Z",
                "version": "2.0.3"
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          "cpes": [
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          ],
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          "cpes": [
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          "product": "Red Hat Enterprise Linux 7",
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          "cpes": [
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          "defaultStatus": "affected",
          "packageName": "idm:client/ipa",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
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          "cpes": [
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      "metrics": [
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        },
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            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:72279"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
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        {
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          ],
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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.

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.

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GHSA-Q4PH-46QC-4W6X

CVE-2026-13097 (GCVE-0-2026-13097)

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Sightings

Nomenclature

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