CVE-2026-8088 OSGeo gdal GDapi.c GDfieldinfo out-of-bounds

Medium 4.8 Published 7 May 2026 Updated 8 May 2026

A local attacker can trigger an out-of-bounds read in GDAL's HDF-EOS handler, potentially exposing memory or causing a crash.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2026-8088?

CVE-2026-8088 is a medium-severity memory corruption vulnerability in OSGeo gdal, published on 7 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A weakness has been identified in OSGeo gdal up to 3.13.0dev-4. The affected element is the function GDfieldinfo of the file frmts/hdf4/hdf-eos/GDapi.c. Executing a manipulation can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. Upgrading to version 3.13.0RC1 is sufficient to fix this issue. This patch is called a791f70f8eaec540974ec989ca6fb00266b7646c. The affected component should be upgraded.

Weakness: CWE-125, CWE-119

Which versions are affected by CVE-2026-8088?

4 open source packages ship an affected version, including gdal and GDAL. It affects 1 product.

Package	Affected	Fixed in
`gdal` Bitnami	All versions	`3.13.0`
`gdal` PyPI	All versions	`3.13.0`
`gdal` PyPI	All versions	`3.13.0`
`GDAL` PyPI	All versions	`3.13.0`

Products include Osgeo Gdal.

How do I fix CVE-2026-8088?

Upgrade gdal to 3.13.0 or later.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-8088 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8088 exists.

Sources

Also known as AZL-86232, BIT-gdal-2026-8088, DEBIAN-CVE-2026-8088, ECHO-1eea-bb40-c2e4, GHSA-j3f5-rw74-g4rv, JLSEC-2026-770 and 2 more.