Vulnerability-Lookup

alsa-2026:65899

Vulnerability from osv_almalinux

Published

2026-09-09 00:00

Modified

2026-09-11 12:30

Summary

Important: postgresql16-postgis security update

Details

PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS "Simple Features Specification for SQL" and has been certified as compliant with the "Types and Functions" profile.

Security Fix(es):

postgis: PostGIS: Memory Disclosure and Denial of Service via Malformed FlatGeobuf Buffer (CVE-2026-73515)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:65899	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-73515	REPORT
	https://bugzilla.redhat.com/2515434	REPORT
	https://errata.almalinux.org/10/ALSA-2026-65899.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "postgis"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.3-4.el10_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "postgis-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.3-4.el10_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "postgis-docs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.3-4.el10_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "postgis-upgrade"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.3-4.el10_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "postgis-utils"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.3-4.el10_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS \"spatially enables\" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI\u0027s SDE or Oracle\u0027s Spatial extension. PostGIS follows the OpenGIS \"Simple Features Specification for SQL\" and has been certified as compliant with the \"Types and Functions\" profile.  \n\nSecurity Fix(es):  \n\n  * postgis: PostGIS: Memory Disclosure and Denial of Service via Malformed FlatGeobuf Buffer (CVE-2026-73515)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:65899",
  "modified": "2026-09-11T12:30:42Z",
  "published": "2026-09-09T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:65899"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-73515"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2515434"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-65899.html"
    }
  ],
  "related": [
    "CVE-2026-73515"
  ],
  "summary": "Important: postgresql16-postgis security update"
}

CVE-2026-73515 (GCVE-0-2026-73515)

Vulnerability from cvelistv5 – Published: 2026-08-13 15:37 – Updated: 2026-08-14 16:52 X_Open Source

Title

PostGIS < 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer

Summary

PostGIS before 3.7.0beta2 contains an out-of-bounds read vulnerability that allows attackers to cause memory disclosure or a server crash by supplying a malformed FlatGeobuf buffer. The FlatGeobuf property metadata decoder verifies that a string length field is present but fails to verify that the subsequent string body is contained within the supplied buffer before materializing it into a SQL-visible value, enabling memory disclosure or denial of service.

Severity

7.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 17:11 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://mehmetince.net/part-1-6-systemic-risks-in…	technical-descriptionexploit
https://gitea.osgeo.org/postgis/postgis/raw/tag/3…	release-notes
https://www.vulncheck.com/advisories/postgis-0bet…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
PostGIS	PostGIS	Affected: 0 , < 3.7.0beta2 (custom) cpe:2.3:a:postgis:postgis::::::postgresql::*

Date Public

2026-08-09 00:00

Credits

Mehmet Ince (@mdisec)

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-73515",
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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.

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.