OSGeo

Issues somebody may already be working on are listed last. List everything by date

• NITF: invalid MGRS IGEOLO corner silently gives wrong GCPs

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  not for AI lovers

  Difficulty 2/5 1-3 hours Newbie friendliness 76/100

  OSGeo/gdal#15515 · 1 comment · Opened Nov 11, 2026

  Maintainers usually reply within 1 day

• GTiff: fractional-window reads return different pixels with GDAL_NUM_THREADS > 1

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/gdal#15513 · Opened Nov 11, 2026

  Maintainers usually reply within 1 day

• OAPIF: pages carrying `exceededTransferLimit` are dropped (GeoJSON driver opens them as an ESRI FeatureService paging dataset)

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  Difficulty 4/5 3-5 days Newbie friendliness 49/100

  OSGeo/gdal#15512 · 2 comments · Opened Nov 11, 2026

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• OpenFileGDB: SetAttributeFilter() errors out on stale .atx index (ArcGIS lazy index update) instead of falling back to full scan

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  not for AI lovers

  Difficulty 3/5 1-2 days Newbie friendliness 58/100

  OSGeo/gdal#15505 · 5 comments · Opened Nov 11, 2026

  Maintainers usually reply within 1 day

• [Bug] v.to.rast -d leaves a gap when a vertex lies exactly on a cell corner

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  bug

  Difficulty 2/5 1-3 hours Newbie friendliness 76/100

  OSGeo/grass#8171 · Opened Nov 10, 2026

  Maintainers usually reply within 1 day

• validate_geoparquet: 3D points rejected as 'Point'

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  Difficulty 1/5 Under an hour Newbie friendliness 88/100

  OSGeo/gdal#15498 · Opened Nov 10, 2026

  Maintainers usually reply within 1 day

• [Feat] grass.temporal: share one id helper between maps and space-time datasets

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/grass#8166 · 1 comment · Opened Nov 10, 2026

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• [Feat] temporal: simplify usage with an open method or function

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  OSGeo/grass#8161 · Opened Nov 9, 2026

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• Potential security issue: GDAL Arrow-to-GeoParquet writing may modify input data or crash

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  OSGeo/gdal#15491 · 12 comments · Opened Nov 8, 2026

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• Arrow Batch API/Parquet: datatime columns and width information is not retained when writing to parquet via the batch API

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  Difficulty 4/5 1-2 days Newbie friendliness 54/100

  OSGeo/gdal#15484 · 11 comments · Opened Nov 6, 2026

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• [Bug] legalize_vector_name does not escape SQL keywords case-insensitively

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  Difficulty 2/5 1-3 hours Newbie friendliness 83/100

  OSGeo/grass#8150 · Opened Nov 4, 2026

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• [Bug] v.gsflow.grid: IndexError on 0-d colValues array and TypeError on dict_values indexing when bc_cell is set

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  Difficulty 2/5 1-3 hours Newbie friendliness 83/100

  OSGeo/grass-addons#1899 · Opened Nov 4, 2026

  Maintainers usually reply within 3 days

• `SetFromUserInput()` with `ALLOW_FILE_ACCESS=NO` is not enough to prevent file access via `dict::` prefixes

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  Difficulty 5/5 Over a week Newbie friendliness 12/100

  OSGeo/gdal#15478 · Opened Nov 3, 2026

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• Viewshed: assertion failure on MSVC debug build

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  Difficulty 3/5 1-2 days Newbie friendliness 42/100

  OSGeo/gdal#15476 · 3 comments · Opened Nov 3, 2026

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• [Bug] r.grow requires much more disk space than the size of the input raster

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OSGeo/grass#8147 · 2 comments · Opened Nov 2, 2026

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• [Bug] v.stream.profiler: IndexError on 0-d colValues array, ValueError on empty window, and incorrect G_OPT_R_INPUT option

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  Difficulty 3/5 Half a day Newbie friendliness 70/100

  OSGeo/grass-addons#1895 · Opened Nov 1, 2026

  Maintainers usually reply within 3 days

• GDAL 3.13.0 (GeoTIFF) driver stopped recognizing `utf8_path` argument

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  not for AI lovers python bindings

  Difficulty 3/5 1-2 days Newbie friendliness 52/100

  OSGeo/gdal#15450 · 1 comment · Opened Oct 30, 2026

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• [Bug] grass.temporal never closes its SQLite connections

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  temporal

  Difficulty 4/5 3-5 days Newbie friendliness 54/100

  OSGeo/grass#8123 · Opened Oct 28, 2026

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• [Bug] Unclosed files and pipes in tool scripts and Python modules

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  Python

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  OSGeo/grass#8122 · Opened Oct 28, 2026

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• [Bug] Unclosed files, pipes and SQLite connections reported by Python dev mode

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  Python tests

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OSGeo/grass#8121 · Opened Oct 28, 2026

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• GPKG raster driver silently drops last column/row when size is just above 256*2^k (e.g. 513, 1025-1027, 2049-2055)

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  not for AI lovers

  Difficulty 4/5 3-5 days Newbie friendliness 58/100

  OSGeo/gdal#15442 · 1 comment · Opened Oct 27, 2026

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• Can't prevent headers being added upon CSV to XLSX conversion

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  enhancement low priority not for AI lovers

  Difficulty 3/5 1-2 days Newbie friendliness 52/100

  OSGeo/gdal#15438 · 7 comments · Opened Oct 25, 2026

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• Using -t_srs on a NULL geometry should not be an error

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  enhancement not for AI lovers

  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  OSGeo/gdal#15437 · Opened Oct 24, 2026

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• GeoJSON: legacy `crs` member of type URL/LINK causes an outbound HTTP fetch while parsing geometry (OGRGeoJSONReadSpatialReference → importFromUrl → CPLHTTPFetch)

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/gdal#15436 · 5 comments · Opened Oct 24, 2026

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• [Bug] temporal: adding months or years to an end-of-month date raises ValueError

  May be free again A pull request for this issue was closed without being merged. Open

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  Difficulty 2/5 1-3 hours Newbie friendliness 39/100

  OSGeo/grass#8090 · Opened Oct 20, 2026

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• [Bug] g.proj: projjson output fails with PROJ 9.8.1

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  bug

  Difficulty 4/5 1-2 days Newbie friendliness 48/100

  OSGeo/grass#8085 · 3 comments · Opened Oct 19, 2026

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• gdalwarp -r sum loses ~0.3% of the total on an EPSG:4326 source when source and target CRS are the same (CENTER_LONG insertion bypasses the exact affine path)

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/gdal#15413 · 2 comments · Opened Oct 18, 2026

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• Zarr: downsampled read of an array with overviews first reads all full-resolution chunks

  May be free again A pull request for this issue was closed without being merged. Open

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  not for AI lovers

  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  OSGeo/gdal#15380 · 4 comments · 3 reactions · Opened Oct 14, 2026

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• [Feat] Replace the pygrass messenger subprocess with in-process grass.script messages

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 18/100

  OSGeo/grass#8067 · 6 comments · 3 reactions · Opened Oct 14, 2026

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• [Bug] g.extension on Windows does not work

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  bug

  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  OSGeo/grass#8058 · 3 comments · Opened Oct 12, 2026

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• assertRastersNoDifference cannot detect a null on one side and a value on the other

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/grass#8057 · Opened Oct 11, 2026

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• Sanitizer (ASan + UBSan) run of gunittest and pytest suites: 20 findings (2026-10-11)

  May be free again @Jayant-kernel claimed this 24 days ago, and no pull request is open. Open

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  bug C libraries raster raster3d vector

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  OSGeo/grass#8048 · 3 comments · 1 reaction · Opened Oct 11, 2026

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• Add ability to limit curl requests to known hosts.

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  enhancement not for AI lovers

  Difficulty 5/5 Over a week Newbie friendliness 38/100

  OSGeo/gdal#15368 · 2 comments · 1 reaction · Opened Oct 11, 2026

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• LIBKML: editing a KMZ in update mode leaves a 134-byte archive holding only `layers/`, and Close() reports success

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  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  OSGeo/gdal#15367 · Opened Oct 11, 2026

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• GPKG: GetSpatialRef() returns the vector layers' SRS instead of the raster SRS on a mixed raster/vector GeoPackage (regression in 3.12)

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  Difficulty 3/5 1-2 days Newbie friendliness 58/100

  OSGeo/gdal#15364 · 3 comments · Opened Oct 9, 2026

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• Interpolation in grid cells with no-data values

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  OSGeo/PROJ#4895 · 3 comments · Opened Oct 8, 2026

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• DERIVEDPROJCRS with 3D Helmert deriving conversion: transform to base CRS works, but to EPSG:4326 fails with "Mismatched units"

  May be free again @rouault-on-strike claimed this 27 days ago, and no pull request is open. Open

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OSGeo/PROJ#4889 · 4 comments · Opened Oct 7, 2026

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• Arrow Batch API: support specifying the precision of a field via the column metadata

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  enhancement not for AI lovers

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OSGeo/gdal#15350 · Opened Oct 6, 2026

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• S101 driver: unsigned b14 values (FIDN, RCID, RRID) are returned negative above 2^31-1

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  not for AI lovers

  Difficulty 4/5 3-5 days Newbie friendliness 58/100

  OSGeo/gdal#15344 · Opened Oct 6, 2026

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• [Security] /vsicurl/ supports additional libcurl protocols

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OSGeo/gdal#15332 · 4 comments · Opened Oct 2, 2026

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• Suggestion: Python API for Pipelines

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  enhancement not for AI lovers

  Difficulty 5/5 Over a week Newbie friendliness 28/100

  OSGeo/gdal#15323 · Opened Oct 2, 2026

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• Flag to control where tmp file is written for COG creation

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OSGeo/gdal#15322 · 2 comments · Opened Oct 2, 2026

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• New command: `gdal raster mask`

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  enhancement not for AI lovers

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/gdal#15321 · Opened Oct 2, 2026

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• Support EPSG polynomial transformation methods (9645–9651)

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  feature request

  Difficulty 5/5 Over a week Newbie friendliness 45/100

  OSGeo/PROJ#4867 · 2 comments · Opened Sep 25, 2026

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• Compilation errors with latest libOpenDRIVE and pugixml (Arch-flavour)

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OSGeo/gdal#15289 · Opened Sep 24, 2026

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• MITAB writes uninitialized bytes into short field-name padding in .dat headers

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  Difficulty 3/5 1-2 days Newbie friendliness 52/100

  OSGeo/gdal#15287 · 9 comments · Opened Sep 23, 2026

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• [Bug] r.random.walk: too many walkers hits system file limit

  May be free again @cwhite911 claimed this 36 days ago, and no pull request is open. Open

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  OSGeo/grass-addons#1860 · 1 assignee · Opened Sep 22, 2026

  Maintainers usually reply within 3 days

• OSS-Fuzz: cad_fuzzer coverage dropped to zero, and multi-file drivers are effectively unfuzzed

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OSGeo/gdal#15281 · Opened Sep 21, 2026

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• Idrisi: unbounded papszRDC[++nLine] indexing causes a NULL dereference when opening a truncated .rdc

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  Difficulty 2/5 1-3 hours Newbie friendliness 57/100

  OSGeo/gdal#15280 · 2 comments · Opened Sep 21, 2026

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• ILWIS: a short read leaves the block buffer uninitialised and the contents reach the output raster

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  Difficulty 2/5 1-3 hours Newbie friendliness 73/100

  OSGeo/gdal#15279 · Opened Sep 21, 2026

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