Heap-based Buffer Overflow in OSGeo GDAL Affecting Versions up to 3.13.0dev-4
CVE-2026-8086

4.8MEDIUM

Key Information:

Vendor

Osgeo

Status
Gdal
Vendor
CVE Published:
7 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8086?

A vulnerability exists in OSGeo GDAL affecting the SWnentries function located in the SWapi.c file. This issue arises when an attacker manipulates the DimensionName argument, potentially leading to a heap-based buffer overflow. The attack requires local access, and exploit code for this vulnerability is publicly available. Users are strongly urged to upgrade to version 3.12.4RC1 or later, where the vulnerability has been addressed. The relevant patch for this issue is associated with commit 9491e794f1757f08063ea2f7a274ad2994afa636.

Affected Version(s)

gdal 3.13.0dev-4

gdal 3.12.4RC1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8086 - Proof of Concept

References

https://vuldb.com/vuln/361839
vdb-entrytechnical-description
https://vuldb.com/vuln/361839/cti
signaturepermissions-required
https://vuldb.com/submit/808038
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

biniam (VulDB User)
.