What is CVE-2026-8086?

CVE-2026-8086 is a medium-severity vulnerability in Osgeo Gdal, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-05-07.

How severe is CVE-2026-8086?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Buffer overflow in Osgeo Gdal

CVE-2026-8086

A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4. This issue affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Such manipulation of the argument DimensionName leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 3.12.4RC1 is capable of addressing this issue. The name of the patch is 9491e794f1757f08063ea2f7a274ad2994afa636. It is advisable to upgrade the affected component.

Vulnerability class: Buffer Overflow

Published 2026-05-07 · last modified 2026-10-25.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (14.8th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.000

Affected products

Osgeo Gdal — versions 3.13.0dev-4, 3.12.4RC1, 3.13.0

Weakness classification (CWE)

References

vuldb.com/vuln/361839 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/vuln/361839/cti (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/submit/808038 (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
github.com/OSGeo/gdal/issues/14356 (issue-tracking, Exploit, Patch, Issue Tracking, Vendor Advisory)
github.com/OSGeo/gdal/pull/14361 (issue-tracking, Patch, patch, Issue Tracking)
github.com/biniamf/pocs/tree/main/gdal-swinqdims_bof (Exploit, Third Party Advisory, exploit)
github.com/OSGeo/gdal/commit/9491e794f1757f08063ea2f7a274ad2994afa636 (Patch, patch)
github.com/OSGeo/gdal/releases/tag/v3.12.4RC1 (Release Notes, patch)
github.com/OSGeo/gdal/ (Product, product)

Frequently asked questions

What is CVE-2026-8086?: CVE-2026-8086 is a medium-severity vulnerability in Osgeo Gdal, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-05-07.
How severe is CVE-2026-8086?: Medium severity. CVSS v3 base score is 5.3 out of 10.