CVE-2026-14671 (GCVE-0-2026-14671)

Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-14 03:55
VLAI
Title
PostgreSQL refint plan cache type confusion executes arbitrary code
Summary
Type confusion in PostgreSQL module "refint" allows an object creator to execute arbitrary code as the operating system user running the database. The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject "refint: Remove plan cache.", without a CVE number. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Severity
8.8 (High)
CVSS:3.1/AV:N/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 2026-08-13 00:00 UTC
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
n/a PostgreSQL Affected: 18 , < 18.5 (rpm)
Affected: 17 , < 17.11 (rpm)
Affected: 16 , < 16.15 (rpm)
Affected: 15 , < 15.19 (rpm)
Affected: 0 , < 14.24 (rpm)
Credits
The PostgreSQL project thanks Hcamael for reporting this problem.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-14671",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-13T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T03:55:27.908Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "PostgreSQL",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "18.5",
              "status": "affected",
              "version": "18",
              "versionType": "rpm"
            },
            {
              "lessThan": "17.11",
              "status": "affected",
              "version": "17",
              "versionType": "rpm"
            },
            {
              "lessThan": "16.15",
              "status": "affected",
              "version": "16",
              "versionType": "rpm"
            },
            {
              "lessThan": "15.19",
              "status": "affected",
              "version": "15",
              "versionType": "rpm"
            },
            {
              "lessThan": "14.24",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "Superuser previously issued \"CREATE EXTENSION refint\".  Attacker has permission to create objects (temporary objects or non-temporary objects in at least one schema)."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "The PostgreSQL project thanks Hcamael for reporting this problem."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Type confusion in PostgreSQL module \"refint\" allows an object creator to execute arbitrary code as the operating system user running the database.  The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject \"refint: Remove plan cache.\", without a CVE number.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-843",
              "description": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-13T13:00:18.697Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
      "references": [
        {
          "url": "https://www.postgresql.org/support/security/CVE-2026-14671/"
        }
      ],
      "title": "PostgreSQL refint plan cache type confusion executes arbitrary code",
      "x_postgresql": {
        "component": "contrib module"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-14671",
    "datePublished": "2026-08-13T13:00:18.697Z",
    "dateReserved": "2026-07-03T20:28:13.192Z",
    "dateUpdated": "2026-08-14T03:55:27.908Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-14671",
      "date": "2026-08-14",
      "epss": "0.00405",
      "percentile": "0.33613"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-14671\",\"sourceIdentifier\":\"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\",\"published\":\"2026-08-13T13:17:44.530\",\"lastModified\":\"2026-08-14T05:16:56.683\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Type confusion in PostgreSQL module \\\"refint\\\" allows an object creator to execute arbitrary code as the operating system user running the database.  The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject \\\"refint: Remove plan cache.\\\", without a CVE number.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.\"}],\"affected\":[{\"source\":\"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"PostgreSQL\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"18\",\"lessThan\":\"18.5\",\"versionType\":\"rpm\",\"status\":\"affected\"},{\"version\":\"17\",\"lessThan\":\"17.11\",\"versionType\":\"rpm\",\"status\":\"affected\"},{\"version\":\"16\",\"lessThan\":\"16.15\",\"versionType\":\"rpm\",\"status\":\"affected\"},{\"version\":\"15\",\"lessThan\":\"15.19\",\"versionType\":\"rpm\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"14.24\",\"versionType\":\"rpm\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-13T00:00:00+00:00\",\"id\":\"CVE-2026-14671\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-843\"}]}],\"references\":[{\"url\":\"https://www.postgresql.org/support/security/CVE-2026-14671/\",\"source\":\"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-14671\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-13T13:26:11.146989Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-13T15:39:54.423Z\"}}], \"cna\": {\"title\": \"PostgreSQL refint plan cache type confusion executes arbitrary code\", \"credits\": [{\"lang\": \"en\", \"value\": \"The PostgreSQL project thanks Hcamael for reporting this problem.\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"n/a\", \"product\": \"PostgreSQL\", \"versions\": [{\"status\": \"affected\", \"version\": \"18\", \"lessThan\": \"18.5\", \"versionType\": \"rpm\"}, {\"status\": \"affected\", \"version\": \"17\", \"lessThan\": \"17.11\", \"versionType\": \"rpm\"}, {\"status\": \"affected\", \"version\": \"16\", \"lessThan\": \"16.15\", \"versionType\": \"rpm\"}, {\"status\": \"affected\", \"version\": \"15\", \"lessThan\": \"15.19\", \"versionType\": \"rpm\"}, {\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"14.24\", \"versionType\": \"rpm\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.postgresql.org/support/security/CVE-2026-14671/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Type confusion in PostgreSQL module \\\"refint\\\" allows an object creator to execute arbitrary code as the operating system user running the database.  The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject \\\"refint: Remove plan cache.\\\", without a CVE number.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-843\", \"description\": \"Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)\"}]}], \"x_postgresql\": {\"component\": \"contrib module\"}, \"configurations\": [{\"lang\": \"en\", \"value\": \"Superuser previously issued \\\"CREATE EXTENSION refint\\\".  Attacker has permission to create objects (temporary objects or non-temporary objects in at least one schema).\"}], \"providerMetadata\": {\"orgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"shortName\": \"PostgreSQL\", \"dateUpdated\": \"2026-08-13T13:00:18.697Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-14671\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-14T03:55:27.908Z\", \"dateReserved\": \"2026-07-03T20:28:13.192Z\", \"assignerOrgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"datePublished\": \"2026-08-13T13:00:18.697Z\", \"assignerShortName\": \"PostgreSQL\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.