CVE-2026-8086Public exploit

Application crash via undersized dimension-name buffer

Published May 7, 2026 · Updated May 7, 2026

Heap-based buffer overflow in GDAL 3.13.0dev-4 allows local users to crash applications by opening a crafted HDF-EOS swath file. SWnentries assumes every DimensionName is quoted and subtracts two bytes when sizing a heap buffer, while SWinqdims copies each unquoted value at full length. The trigger requires local access to supply the file and affects applications using the HDF4/HDF-EOS multidimensional API; the demonstrated result is a process crash.

CVSS severity5.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in GDAL 3.13.0dev-4 allows local users to crash applications by opening a crafted HDF-EOS swath file. SWnentries assumes every DimensionName is quoted and subtracts two bytes when sizing a heap buffer, while SWinqdims copies each unquoted value at full length. The trigger requires local access to supply the file and affects applications using the HDF4/HDF-EOS multidimensional API; the demonstrated result is a process crash.

The record

CVE
CVE-2026-8086
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Open Source Geospatial Foundation
Product
GDAL
Classifications
CWE-119, CWE-122
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.13.0dev-4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Open Source Geospatial Foundation · GDALversion=3.13.0dev-4

Published CVSS scores

1.9VulDBCVSS: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
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122Heap-based Buffer Overflow

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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