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PatchSiren cyber security CVE debrief

CVE-2026-8212 OSGeo CVE debrief

CVE-2026-8212 is a local memory-corruption issue in OSGeo GDAL affecting the SWSDfldsrch function in frmts/hdf4/hdf-eos/SWapi.c. The supplied record says the flaw can trigger a heap-based buffer overflow, requires local access, and has a public exploit reference. A fix is referenced by commit 3e04c0385630e4d42517046d9a4967dfccfeb7fd and the GDAL 3.13.0RC1 release.

Vendor
OSGeo
Product
GDAL
CVSS
LOW 1.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-09
Original CVE updated
2026-07-24
Advisory published
2026-05-09
Advisory updated
2026-07-24

Who should care

Administrators and developers running GDAL builds up to 3.13.0dev-4, especially where HDF4/HDF-EOS support is enabled or where local users can feed data into GDAL-backed workflows.

Technical summary

The issue is a heap-based buffer overflow in SWSDfldsrch within GDAL's HDF4/HDF-EOS code path (frmts/hdf4/hdf-eos/SWapi.c). The supplied CVSS vector indicates local attack conditions with low privileges and no user interaction. The record links the issue to CWE-119 and CWE-122, and points to a fix delivered in GDAL 3.13.0RC1 via commit 3e04c0385630e4d42517046d9a4967dfccfeb7fd.

Defensive priority

Low severity overall, but worth prioritizing for any environment that processes HDF4/HDF-EOS data on shared local systems or distributes GDAL-enabled applications to local users.

Recommended defensive actions

  • Upgrade OSGeo GDAL to 3.13.0RC1 or later, or a vendor build that includes commit 3e04c0385630e4d42517046d9a4967dfccfeb7fd.
  • Inventory systems and applications that bundle or depend on GDAL up to 3.13.0dev-4, with attention to HDF4/HDF-EOS support.
  • Treat the public exploit reference as a sign to accelerate patching and validate that affected builds are removed from production.
  • Until patched, limit local access to systems that process untrusted HDF4/HDF-EOS data and monitor for crashes in GDAL-related workflows.

Evidence notes

This debrief is based only on the supplied CVE/NVD record and linked references. The source item was published and modified on 2026-05-09T23:16:33.113Z. The references include the GDAL repository, the fixing commit, an issue discussion, the 3.13.0RC1 release tag, and a public PoC repository. The vendor field in the supplied data is Vuldb with low confidence and marked needsReview, so the product attribution should be treated as source-backed but not independently validated here.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-8212 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-8212

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-8212 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-8212

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.