CVE-2026-49014: In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack

Routine

HIGH 7.4UPGRADE

CVE-2026-49014 is a high-severity flaw (CVSS 7.4) affecting gdal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer without validating the attribute length. The attacker embeds the exploit as an oversized geometry attribute in a crafted NetCDF file. This achieves arbitrary code execution on the server running GDAL. This is in frmts/netcdf/netcdfsg.cpp.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-05-27
Last modified	2026-07-24

Publisher (CNA): MITRE · Vendor: osgeo

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 02:16 UTCPublished CVE record published
2026-07-24 12:10 UTCUpdated Record last modified

osgeo gdal UPGRADE

Affected: >= 3.1.0 and <= 3.13.0

Fixed in: newer than 3.13.0

Safe to downgrade to: a release before 3.1.0

1. Check installed version

apt-cache policy gdal || rpm -q gdal || gdal --version

2. UPGRADE to newer than 3.13.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gdal

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gdal

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.1.0 (Debian / Ubuntu)

apt-cache madison gdal sudo apt install gdal=<VERSION_BEFORE_3.1.0> sudo apt-mark hold gdal

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list gdal sudo dnf downgrade gdal-<VERSION_BEFORE_3.1.0> sudo dnf versionlock add gdal

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-49014?

gdal: upgrade to newer than 3.13.0. Exact commands for each OS are on this page.

Is CVE-2026-49014 being exploited?

CVE-2026-49014 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-49014 affect?

CVE-2026-49014 affects gdal. Severity is high (CVSS 7.4). In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer without validating the attribute length. The

How urgent is CVE-2026-49014?

Priority 26/100. High severity

Related CVEs

CVE-2026-8087 MEDIUM 5.3 UPGRADE A security flaw has been discovered in OSGeo gdal up to 3.13.0dev-4
CVE-2026-8084 LOW 3.3 UPGRADE A vulnerability was determined in OSGeo gdal up to 3.13.0dev-4
CVE-2026-8088 LOW 3.3 UPGRADE A weakness has been identified in OSGeo gdal up to 3.13.0dev-4
CVE-2026-8086 MEDIUM 5.3 UPGRADE A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4
CVE-2026-8213 MEDIUM 5.3 UPGRADE A vulnerability has been found in OSGeo gdal up to 3.13.0dev-4

References

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