CVE-2026-8087: GDAL OSGeo GDAL Vulnerable To Heap-based Vulnerability

LOW
Advisory Identifier: GHSA-h9rh-5ffh-h669
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CVSS 5.3
CWE-119
Published
Advisory Summary

CVE-2026-8087 is a LOW (CVSS 5.3) osgeo gdal vulnerable to heap-based vulnerability (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer) affecting GDAL libraries in the PyPI ecosystem. The issue involves osgeo gdal vulnerable to heap-based buffer overflow. Remediation is available by upgrading affected packages to version 3.13.0.

CVE-2026-8087 at a Glance

CVE Identifier CVE-2026-8087
GHSA Identifier GHSA-h9rh-5ffh-h669
Severity LOW
CVSS v3.1 Base Score 5.3
CWE Classification CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Product GDAL
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-8087

To remediate this vulnerability, upgrade all affected GDAL dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

GDAL fixed: 3.13.0 
pip install GDAL>=3.13.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show GDAL

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-8087, inspect your installed packages using pip:

pip show GDAL

Analyze the terminal output to locate any version of GDAL in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.13.0), your application is affected.

Note: The pip show GDAL command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer, where the product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. this may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. In GDAL, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A security flaw has been discovered in OSGeo gdal up to 3.13.0dev-4. Impacted is the function GDnentries of the file frmts/hdf4/hdf-eos/GDapi.c. Performing a manipulation of the argument DataFieldName results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 3.13.0RC1 is recommended to address this issue. The patch is named 184f77dbcc74118c062c05e464c88161d3c37b9b. You should upgrade the affected component.

CVE-2026-8087 Affected GDAL Versions

1 component(s)
Fixed Versions:
3.13.0
Product / Package Ecosystem Affected Versions Fixed Version
GDAL
pypi/GDAL
PyPI
< 3.13.0
3.13.0

References

NVD — CVE-2026-8087 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8087
GDAL Source Repository REPOSITORY
https://github.com/OSGeo/gdal/issues/14363
Security Fix Commit FIX COMMIT
https://github.com/OSGeo/gdal/commit/184f77dbcc74118c062c05e464c88161d3c37b9b
GDAL Source Repository REPOSITORY
https://github.com/OSGeo/gdal
GDAL Release RELEASE
https://github.com/OSGeo/gdal/releases/tag/v3.13.0RC1
GDAL Source Repository REPOSITORY
https://github.com/biniamf/pocs/tree/main/gdal-gdinqfields_bof
vuldb.com/submit/808039 WEB
https://vuldb.com/submit/808039
vuldb.com/vuln/361840 WEB
https://vuldb.com/vuln/361840
vuldb.com/vuln/361840/cti WEB
https://vuldb.com/vuln/361840/cti

Frequently Asked Questions

What is CVE-2026-8087?
CVE-2026-8087 is a security vulnerability in GDAL involving OSGeo GDAL vulnerable to heap-based buffer overflow under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer.
Which GDAL versions are affected?
Affected versions include releases prior to 3.13.0 across affected packages: GDAL.
What version fixes CVE-2026-8087?
Upgrading to 3.13.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is GDAL affected?
Yes, GDAL is affected in releases prior to 3.13.0. Upgrade your dependency to 3.13.0 or later.
What is the CVSS score of CVE-2026-8087?
CVE-2026-8087 has a CVSS v3.1 base score of 5.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-8087?
CVE-2026-8087 is classified under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer (The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.).
How can I check PyPI dependencies for CVE-2026-8087?
Run the dependency tree command: 'pip show GDAL'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h9rh-5ffh-h669",
  "modified" : "2026-05-12T16:29:15Z",
  "published" : "2026-05-07T21:30:30Z",
  "aliases" : [ "CVE-2026-8087" ],
  "summary" : "OSGeo GDAL vulnerable to heap-based buffer overflow",
  "details" : "A security flaw has been discovered in OSGeo gdal up to 3.13.0dev-4. Impacted is the function GDnentries of the file frmts/hdf4/hdf-eos/GDapi.c. Performing a manipulation of the argument DataFieldName results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 3.13.0RC1 is recommended to address this issue. The patch is named 184f77dbcc74118c062c05e464c88161d3c37b9b. You should upgrade the affected component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "GDAL"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.13.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-8087"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OSGeo/gdal/issues/14363"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OSGeo/gdal/commit/184f77dbcc74118c062c05e464c88161d3c37b9b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OSGeo/gdal"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OSGeo/gdal/releases/tag/v3.13.0RC1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/biniamf/pocs/tree/main/gdal-gdinqfields_bof"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/808039"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/361840"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/361840/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-119" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-12T16:29:15Z",
    "nvd_published_at" : "2026-05-07T20:16:45Z"
  }
}