Vulnerability-Lookup

RHSA-2026:52395

Vulnerability from csaf_redhat - Published: 2026-08-10 00:00 - Updated: 2026-08-10 00:00

Summary

security update for postgresql

Severity

Important

Notes

Title of the patch: security update for postgresql

Description of the patch: This security update provides a functional equivalent of RHSA-2026:52395. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:52395.

Patchnames: RHSA-2026:52395

CVE-2026-6479

7.5 (High)


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

Affected products

Recommended 15 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 9:postgresql-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-contrib-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-docs-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-plperl-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-plpython3-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-pltcl-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-private-devel-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-private-libs-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-server-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-server-devel-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-static-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-test-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-test-rpm-macros-13.23-5.el9_8.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-upgrade-13.23-5.el9_8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:postgresql-upgrade-devel-13.23-5.el9_8.x86_64	—	Vendor Fix

Threats

Impact important

References

5 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2026-6479/	self
https://www.suse.com/security/cve/CVE-2026-6479	external
https://bugzilla.suse.com/1265179	external

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2026-6479",
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        {
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          "text": "https://www.suse.com/security/cve/CVE-2026-6479"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service.  If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.",
          "title": "CVE description"
        }
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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      "scores": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "SUSE Liberty Linux 9:postgresql-contrib-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-docs-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-plperl-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-plpython3-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-pltcl-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-private-devel-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-private-libs-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-server-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-server-devel-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-static-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-test-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-test-rpm-macros-13.23-5.el9_8.noarch",
            "SUSE Liberty Linux 9:postgresql-upgrade-13.23-5.el9_8.x86_64",
            "SUSE Liberty Linux 9:postgresql-upgrade-devel-13.23-5.el9_8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-08-10T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-6479"
    }
  ]
}

CVE-2026-6479 (GCVE-0-2026-6479)

Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-14 15:26

Title

PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion

Summary

Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service. If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-674 - Uncontrolled Recursion

Assigner

PostgreSQL

References

1 reference

URL	Tags
https://www.postgresql.org/support/security/CVE-2…

Impacted products

1 product

Vendor	Product	Version
n/a	PostgreSQL	Affected: 18 , < 18.4 (rpm) Affected: 17 , < 17.10 (rpm) Affected: 16 , < 16.14 (rpm) Affected: 15 , < 15.18 (rpm) Affected: 0 , < 14.23 (rpm)

Credits

The PostgreSQL project thanks Calif.io in collaboration with Claude and Anthropic Research for reporting this problem.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6479",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-14T15:26:13.223741Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-14T15:26:20.166Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "PostgreSQL",
          "vendor": "n/a",
          "versions": [
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              "lessThan": "18.4",
              "status": "affected",
              "version": "18",
              "versionType": "rpm"
            },
            {
              "lessThan": "17.10",
              "status": "affected",
              "version": "17",
              "versionType": "rpm"
            },
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              "status": "affected",
              "version": "16",
              "versionType": "rpm"
            },
            {
              "lessThan": "15.18",
              "status": "affected",
              "version": "15",
              "versionType": "rpm"
            },
            {
              "lessThan": "14.23",
              "status": "affected",
              "version": "0",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "The PostgreSQL project thanks Calif.io in collaboration with Claude and Anthropic Research for reporting this problem."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service.  If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-674",
              "description": "Uncontrolled Recursion",
              "lang": "en",
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            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-14T13:00:13.859Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
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      },
      "references": [
        {
          "url": "https://www.postgresql.org/support/security/CVE-2026-6479/"
        }
      ],
      "title": "PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion",
      "workarounds": [
        {
          "lang": "en",
          "value": "enable SSL and/or GSS; disable unix_socket_directories"
        }
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  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
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    "datePublished": "2026-05-14T13:00:13.859Z",
    "dateReserved": "2026-04-17T00:45:37.869Z",
    "dateUpdated": "2026-05-14T15:26:20.166Z",
    "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.

Action not permitted

RHSA-2026:52395

CVE-2026-6479 (GCVE-0-2026-6479)

Tags

Sightings

Nomenclature