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OSGeo GDAL CVE-2026-8088

| EUVDEUVD-2026-28436 LOW
Out-of-bounds Read (CWE-125)
2026-05-07 VulDB GHSA-j3f5-rw74-g4rv
Information Disclosure Buffer Overflow Gdal
1.9
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
1.9 LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Source Code Evidence Fetched
May 07, 2026 - 20:31 vuln.today
Analysis Generated
May 07, 2026 - 20:31 vuln.today
CVSS changed
May 07, 2026 - 20:22 NVD
3.3 (LOW) 1.9 (LOW)
CVE Published
May 07, 2026 - 19:30 nvd
LOW 1.9

DescriptionCVE.org

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.

AnalysisAI

Out-of-bounds read in OSGeo GDAL up to version 3.13.0dev-4 affects the GDfieldinfo function in HDF-EOS module when processing malformed HDF4 files. A locally authenticated attacker can trigger memory disclosure by crafting a specially formatted HDF4 file. Publicly available exploit code exists. The vulnerability is fixed in GDAL 3.13.0RC1 and later.

Technical ContextAI

The vulnerability resides in the GDfieldinfo function of frmts/hdf4/hdf-eos/GDapi.c, which parses HDF-EOS metadata from HDF4 files. The function uses memmove and string manipulation to process dimension list strings without proper bounds checking. The vulnerable code attempts to strip parentheses from field name strings by performing a string length calculation and then shifting memory, but fails to validate that the string is at least 2 characters long and properly terminated before accessing array indices. This violates CWE-125 (Out-of-bounds Read), allowing reads beyond allocated buffer boundaries. The similar vulnerability pattern also exists in SWapi.c (SWfinfo function) and is patched identically. The fix adds explicit length validation before the memmove operation, ensuring the string has minimum length 2 and proper parenthetical structure.

RemediationAI

Upgrade OSGeo GDAL to version 3.13.0RC1 or later. The upstream commit a791f70f8eaec540974ec989ca6fb00266b7646c has been released in the v3.13.0RC1 tag. Organizations unable to upgrade immediately should restrict local system access to trusted users only and disable or isolate HDF4 file processing from untrusted sources. If HDF4 processing is not required, disabling the HDF4 driver at compile time (--without-hdf4) eliminates exposure entirely. A temporary workaround involves validating HDF4 files with an external tool before processing, though this is less reliable than patching. The patch involves minimal code changes (bounds checking before string manipulation) with no breaking API changes or performance impact.

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Same weakness CWE-125 – Out-of-bounds Read

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Same technique Information Disclosure

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CVE-2026-8088 vulnerability details – vuln.today
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