Vulnerability-Lookup

UBUNTU-CVE-2026-2361 (CVE-2026-2361)

Vulnerability from osv_ubuntu – Published: 2026-02-11 18:16 – Updated: 2026-04-22 07:57 – Source website

Details

PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a temporary view based on a function containing malicious code. When the anon.get_tablesample_ratio function is then called, the malicious code is executed with superuser privileges. This privilege elevation can be exploited by users having the CREATE privilege in PostgreSQL 15 and later. The risk is higher with PostgreSQL 14 or with instances upgraded from PostgreSQL 14 or a prior version because the creation permission on the public schema is granted by default. The problem is resolved in PostgreSQL Anonymizer 3.0.1 and further versions

Severity

8.0 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-2361	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-2361	REPORT
	https://gitlab.com/dalibo/postgresql_anonymizer/-…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-client-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-contrib-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-doc-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-plperl-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-plpython-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-plpython3-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-pltcl-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          },
          {
            "binary_name": "postgresql-server-dev-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "postgresql-9.3",
        "purl": "pkg:deb/ubuntu/postgresql-9.3@9.3.24-0ubuntu0.14.04+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.3.1-1",
        "9.3.2-1",
        "9.3.2-1ubuntu1",
        "9.3.2-1ubuntu2",
        "9.3.3-1",
        "9.3.3-1bzr1",
        "9.3.3-1bzr2",
        "9.3.4-1",
        "9.3.5-0ubuntu0.14.04.1",
        "9.3.6-0ubuntu0.14.04",
        "9.3.7-0ubuntu0.14.04",
        "9.3.8-0ubuntu0.4.04",
        "9.3.9-0ubuntu0.14.04",
        "9.3.10-0ubuntu0.14.04",
        "9.3.11-0ubuntu0.14.04",
        "9.3.12-0ubuntu0.14.04",
        "9.3.13-0ubuntu0.14.04",
        "9.3.14-0ubuntu0.14.04",
        "9.3.15-0ubuntu0.14.04",
        "9.3.16-0ubuntu0.14.04",
        "9.3.17-0ubuntu0.14.04",
        "9.3.18-0ubuntu0.14.04.1",
        "9.3.19-0ubuntu0.14.04",
        "9.3.20-0ubuntu0.14.04",
        "9.3.21-0ubuntu0.14.04",
        "9.3.22-0ubuntu0.14.04",
        "9.3.23-0ubuntu0.14.04",
        "9.3.24-0ubuntu0.14.04",
        "9.3.24-0ubuntu0.14.04+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a temporary view based on a function containing malicious code. When the anon.get_tablesample_ratio function is then called, the malicious code is executed with superuser privileges. This privilege elevation can be exploited by users having the CREATE privilege in PostgreSQL 15 and later. The risk is higher with PostgreSQL 14 or with instances upgraded from PostgreSQL 14 or a prior version because the creation permission on the public schema is granted by default. The problem is resolved in PostgreSQL Anonymizer 3.0.1 and further versions",
  "id": "UBUNTU-CVE-2026-2361",
  "modified": "2026-04-22T07:57:43Z",
  "published": "2026-02-11T18:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-2361"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-2361"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/dalibo/postgresql_anonymizer/-/blob/latest/NEWS.md"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-2361"
  ]
}

CVE-2026-2361 (GCVE-0-2026-2361)

Vulnerability from cvelistv5 – Published: 2026-02-11 17:48 – Updated: 2026-02-11 18:24

Title

Improper search_path protection in PostgreSQL Anonymizer 2.5 allows any user with create privilege to gain superuser privileges

Summary

Severity

8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-11 18:23 UTC

CWE

CWE-427 - Uncontrolled Search Path Element

Assigner

PostgreSQL redhat root

References

2 references

URL	Tags
https://gitlab.com/dalibo/postgresql_anonymizer/-…
https://gitlab.com/dalibo/postgresql_anonymizer/-…

Impacted products

1 product

Vendor	Product	Version
DALIBO	PostgreSQL Anonymizer	Affected: 1 , < 3.0.1 (rpm)

Credits

The PostgreSQL Anonymizer project thanks Daniel Bakker for reporting this problem.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-2361",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-11T18:23:47.877689Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-11T18:24:03.242Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "PostgreSQL Anonymizer",
          "vendor": "DALIBO",
          "versions": [
            {
              "lessThan": "3.0.1",
              "status": "affected",
              "version": "1",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "The PostgreSQL Anonymizer project thanks Daniel Bakker for reporting this problem."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a temporary view based on a function containing malicious code. When the anon.get_tablesample_ratio function is then called, the malicious code is executed with superuser privileges. This privilege elevation can be exploited by users having the CREATE privilege in PostgreSQL 15 and later. The risk is higher with PostgreSQL 14 or with instances upgraded from PostgreSQL 14 or a prior version because the creation permission on the public schema is granted by default. The problem is resolved in PostgreSQL Anonymizer 3.0.1 and further versions"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-427",
              "description": "Uncontrolled Search Path Element",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-11T17:48:03.805Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
      "references": [
        {
          "url": "https://gitlab.com/dalibo/postgresql_anonymizer/-/blob/latest/NEWS.md"
        },
        {
          "url": "https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/617"
        }
      ],
      "title": "Improper search_path protection in PostgreSQL Anonymizer 2.5 allows any user with create privilege to gain superuser privileges",
      "workarounds": [
        {
          "lang": "en",
          "value": "Drop the anon.get_tablesample_ratio function. It is obsolete."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-2361",
    "datePublished": "2026-02-11T17:48:03.805Z",
    "dateReserved": "2026-02-11T17:11:41.858Z",
    "dateUpdated": "2026-02-11T18:24:03.242Z",
    "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.