CVE-2026-107314 (GCVE-0-2026-107314)
Vulnerability from cvelistv5
Published
2026-10-07 23:03
Modified
2026-10-08 14:47
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-636 - Not Failing Securely ('Failing Open')
Summary
pgjdbc, the PostgreSQL JDBC Driver, versions 42.7.11 through 42.7.13 enforce no restriction when the requireAuth connection property excludes all six authentication methods the driver knows, for example requireAuth=!password,!md5,!gss,!sspi,!scram-sha-256,!none. The driver then accepts any method the server asks for, including cleartext password authentication. A value without a method in it, such as requireAuth=, (a single comma), is affected the same way. An attacker positioned between the application and its server can ask for cleartext password authentication and receive the database password. A positive list such as requireAuth=scram-sha-256, and a partial exclusion such as requireAuth=!password,!md5, are enforced correctly. The property has no default value, so a deployment that does not set it is not affected. 42.7.14 fixes the problem: such a connection is refused with SQLState 08004, and a value without a method in it is rejected as invalid.
References
Impacted products
Vendor Product Version
pgjdbc pgjdbc Version: 42.7.11
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107314",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T14:45:17.563568Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T14:47:31.949Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.postgresql:postgresql",
          "product": "pgjdbc",
          "programFiles": [
            "pgjdbc/src/main/java/org/postgresql/core/AuthMethod.java"
          ],
          "programRoutines": [
            {
              "name": "org.postgresql.core.AuthMethod.parseRequireAuth"
            },
            {
              "name": "org.postgresql.core.AuthMethod.checkAuth"
            }
          ],
          "repo": "https://github.com/pgjdbc/pgjdbc",
          "vendor": "pgjdbc",
          "versions": [
            {
              "lessThan": "42.7.14",
              "status": "affected",
              "version": "42.7.11",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Daniel Coles"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "pgjdbc, the PostgreSQL JDBC Driver, versions 42.7.11 through 42.7.13 enforce no restriction when the requireAuth connection property excludes all six authentication methods the driver knows, for example requireAuth=!password,!md5,!gss,!sspi,!scram-sha-256,!none. The driver then accepts any method the server asks for, including cleartext password authentication. A value without a method in it, such as requireAuth=, (a single comma), is affected the same way. An attacker positioned between the application and its server can ask for cleartext password authentication and receive the database password. A positive list such as requireAuth=scram-sha-256, and a partial exclusion such as requireAuth=!password,!md5, are enforced correctly. The property has no default value, so a deployment that does not set it is not affected. 42.7.14 fixes the problem: such a connection is refused with SQLState 08004, and a value without a method in it is rejected as invalid."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-636",
              "description": "CWE-636 Not Failing Securely (\u0027Failing Open\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-07T23:03:01.500Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-rhp9-mr79-r74h"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to pgjdbc 42.7.14 or later, and replace a requireAuth value that excludes every method or names none with a positive list of the methods the server uses."
        }
      ],
      "title": "pgjdbc does not enforce requireAuth when the value excludes every authentication method",
      "workarounds": [
        {
          "lang": "en",
          "value": "Replace the requireAuth value with a positive list of the methods the server uses, for example requireAuth=scram-sha-256; a positive list is enforced correctly on every affected version. A deployment that uses SCRAM over TLS can also set channelBinding=require, which refuses every authentication request other than SCRAM. Verifying the server certificate with sslmode=verify-full against a trusted CA prevents an attacker from presenting a substitute server."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-107314",
    "datePublished": "2026-10-07T23:03:01.500Z",
    "dateReserved": "2026-10-07T16:53:39.434Z",
    "dateUpdated": "2026-10-08T14:47:31.949Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-107314\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-08T14:45:17.563568Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-08T14:47:13.036Z\"}}], \"cna\": {\"title\": \"pgjdbc does not enforce requireAuth when the value excludes every authentication method\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Daniel Coles\"}], \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"repo\": \"https://github.com/pgjdbc/pgjdbc\", \"vendor\": \"pgjdbc\", \"product\": \"pgjdbc\", \"versions\": [{\"status\": \"affected\", \"version\": \"42.7.11\", \"lessThan\": \"42.7.14\", \"versionType\": \"maven\"}], \"packageName\": \"org.postgresql:postgresql\", \"programFiles\": [\"pgjdbc/src/main/java/org/postgresql/core/AuthMethod.java\"], \"collectionURL\": \"https://repo.maven.apache.org/maven2\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"org.postgresql.core.AuthMethod.parseRequireAuth\"}, {\"name\": \"org.postgresql.core.AuthMethod.checkAuth\"}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to pgjdbc 42.7.14 or later, and replace a requireAuth value that excludes every method or names none with a positive list of the methods the server uses.\"}], \"references\": [{\"url\": \"https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-rhp9-mr79-r74h\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Replace the requireAuth value with a positive list of the methods the server uses, for example requireAuth=scram-sha-256; a positive list is enforced correctly on every affected version. A deployment that uses SCRAM over TLS can also set channelBinding=require, which refuses every authentication request other than SCRAM. Verifying the server certificate with sslmode=verify-full against a trusted CA prevents an attacker from presenting a substitute server.\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"pgjdbc, the PostgreSQL JDBC Driver, versions 42.7.11 through 42.7.13 enforce no restriction when the requireAuth connection property excludes all six authentication methods the driver knows, for example requireAuth=!password,!md5,!gss,!sspi,!scram-sha-256,!none. The driver then accepts any method the server asks for, including cleartext password authentication. A value without a method in it, such as requireAuth=, (a single comma), is affected the same way. An attacker positioned between the application and its server can ask for cleartext password authentication and receive the database password. A positive list such as requireAuth=scram-sha-256, and a partial exclusion such as requireAuth=!password,!md5, are enforced correctly. The property has no default value, so a deployment that does not set it is not affected. 42.7.14 fixes the problem: such a connection is refused with SQLState 08004, and a value without a method in it is rejected as invalid.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-636\", \"description\": \"CWE-636 Not Failing Securely (\u0027Failing Open\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"shortName\": \"PostgreSQL\", \"dateUpdated\": \"2026-10-07T23:03:01.500Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-107314\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-08T14:47:31.949Z\", \"dateReserved\": \"2026-10-07T16:53:39.434Z\", \"assignerOrgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"datePublished\": \"2026-10-07T23:03:01.500Z\", \"assignerShortName\": \"PostgreSQL\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.